629971765925 has 12 divisors (see below), whose sum is σ = 781191655296. Its totient is φ = 503960209200.

The previous prime is 629971765909. The next prime is 629971765933. The reversal of 629971765925 is 529567179926.

629971765925 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 629971765925 - 2⁴ = 629971765909 is a prime.

It is a super-2 number, since 2×629971765925² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 344270 + ... + 1174080.

It is an arithmetic number, because the mean of its divisors is an integer number (65099304608).

Almost surely, 2^629971765925 is an apocalyptic number.

It is an amenable number.

629971765925 is a deficient number, since it is larger than the sum of its proper divisors (151219889371).

629971765925 is a wasteful number, since it uses less digits than its factorization.

629971765925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 860188 (or 860183 counting only the distinct ones).

The product of its digits is 128595600, while the sum is 68.

The spelling of 629971765925 in words is "six hundred twenty-nine billion, nine hundred seventy-one million, seven hundred sixty-five thousand, nine hundred twenty-five".