39630765929 has 2 divisors, whose sum is σ = 39630765930. Its totient is φ = 39630765928.

The previous prime is 39630765883. The next prime is 39630765931. The reversal of 39630765929 is 92956703693.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27996986329 + 11633779600 = 167323^2 + 107860^2 .

It is a cyclic number.

It is not a de Polignac number, because 39630765929 - 2²⁰ = 39629717353 is a prime.

Together with 39630765931, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (39630765029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19815382964 + 19815382965.

It is an arithmetic number, because the mean of its divisors is an integer number (19815382965).

Almost surely, 2^39630765929 is an apocalyptic number.

It is an amenable number.

39630765929 is a deficient number, since it is larger than the sum of its proper divisors (1).

39630765929 is an equidigital number, since it uses as much as digits as its factorization.

39630765929 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16533720, while the sum is 59.

The spelling of 39630765929 in words is "thirty-nine billion, six hundred thirty million, seven hundred sixty-five thousand, nine hundred twenty-nine".