39952562651 has 2 divisors, whose sum is σ = 39952562652. Its totient is φ = 39952562650.

The previous prime is 39952562647. The next prime is 39952562669. The reversal of 39952562651 is 15626525993.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 39952562651 - 2² = 39952562647 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 39952562593 and 39952562602.

It is not a weakly prime, because it can be changed into another prime (39952562621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19976281325 + 19976281326.

It is an arithmetic number, because the mean of its divisors is an integer number (19976281326).

Almost surely, 2^39952562651 is an apocalyptic number.

39952562651 is a deficient number, since it is larger than the sum of its proper divisors (1).

39952562651 is an equidigital number, since it uses as much as digits as its factorization.

39952562651 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4374000, while the sum is 53.

The spelling of 39952562651 in words is "thirty-nine billion, nine hundred fifty-two million, five hundred sixty-two thousand, six hundred fifty-one".