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38753857853 is a prime number
BaseRepresentation
bin100100000101111010…
…001111000100111101
310201000211012221211122
4210011322033010331
51113331441422403
625445301400325
72541233233214
oct440572170475
9121024187748
1038753857853
11154875a6aa7
1276167090a5
133867b53949
141c38caa07b
15101c3d4838
hex905e8f13d

38753857853 has 2 divisors, whose sum is σ = 38753857854. Its totient is φ = 38753857852.

The previous prime is 38753857823. The next prime is 38753857859. The reversal of 38753857853 is 35875835783.

It is a happy number.

38753857853 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27324751204 + 11429106649 = 165302^2 + 106907^2 .

It is an emirp because it is prime and its reverse (35875835783) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-38753857853 is a prime.

It is a super-2 number, since 2×387538578532 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38753857859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19376928926 + 19376928927.

It is an arithmetic number, because the mean of its divisors is an integer number (19376928927).

Almost surely, 238753857853 is an apocalyptic number.

It is an amenable number.

38753857853 is a deficient number, since it is larger than the sum of its proper divisors (1).

38753857853 is an equidigital number, since it uses as much as digits as its factorization.

38753857853 is an evil number, because the sum of its binary digits is even.

The product of its digits is 84672000, while the sum is 62.

The spelling of 38753857853 in words is "thirty-eight billion, seven hundred fifty-three million, eight hundred fifty-seven thousand, eight hundred fifty-three".