10200019957 has 2 divisors, whose sum is σ = 10200019958. Its totient is φ = 10200019956.

The previous prime is 10200019939. The next prime is 10200019961. The reversal of 10200019957 is 75991000201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9712890916 + 487129041 = 98554^2 + 22071^2 .

It is a cyclic number.

It is not a de Polignac number, because 10200019957 - 2¹¹ = 10200017909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10200019927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5100009978 + 5100009979.

It is an arithmetic number, because the mean of its divisors is an integer number (5100009979).

Almost surely, 2^10200019957 is an apocalyptic number.

It is an amenable number.

10200019957 is a deficient number, since it is larger than the sum of its proper divisors (1).

10200019957 is an equidigital number, since it uses as much as digits as its factorization.

10200019957 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5670, while the sum is 34.

The spelling of 10200019957 in words is "ten billion, two hundred million, nineteen thousand, nine hundred fifty-seven".