629866706512 has 40 divisors (see below), whose sum is σ = 1297180999656. Its totient is φ = 295254491136.

The previous prime is 629866706507. The next prime is 629866706527. The reversal of 629866706512 is 215607668926.

629866706512 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 437931591696 + 191935114816 = 661764^2 + 438104^2 .

It is a super-2 number, since 2×629866706512² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4435323 + ... + 4575130.

Almost surely, 2^629866706512 is an apocalyptic number.

It is an amenable number.

629866706512 is an abundant number, since it is smaller than the sum of its proper divisors (667314293144).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

629866706512 is a wasteful number, since it uses less digits than its factorization.

629866706512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9010735 (or 9010729 counting only the distinct ones).

The product of its (nonzero) digits is 13063680, while the sum is 58.

The spelling of 629866706512 in words is "six hundred twenty-nine billion, eight hundred sixty-six million, seven hundred six thousand, five hundred twelve".