4652105451781 has 2 divisors, whose sum is σ = 4652105451782. Its totient is φ = 4652105451780.

The previous prime is 4652105451761. The next prime is 4652105451881. The reversal of 4652105451781 is 1871545012564.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4335660950625 + 316444501156 = 2082225^2 + 562534^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4652105451781 is a prime.

It is a super-2 number, since 2×4652105451781² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4652105451751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2326052725890 + 2326052725891.

It is an arithmetic number, because the mean of its divisors is an integer number (2326052725891).

Almost surely, 2^{4652105451781} is an apocalyptic number.

It is an amenable number.

4652105451781 is a deficient number, since it is larger than the sum of its proper divisors (1).

4652105451781 is an equidigital number, since it uses as much as digits as its factorization.

4652105451781 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1344000, while the sum is 49.

The spelling of 4652105451781 in words is "four trillion, six hundred fifty-two billion, one hundred five million, four hundred fifty-one thousand, seven hundred eighty-one".