626989714464 has 96 divisors (see below), whose sum is σ = 1807796551680. Its totient is φ = 189388184832.

The previous prime is 626989714457. The next prime is 626989714499. The reversal of 626989714464 is 464417989626.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×626989714464² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 626989714395 and 626989714404.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7430752 + ... + 7514655.

It is an arithmetic number, because the mean of its divisors is an integer number (18831214080).

Almost surely, 2^626989714464 is an apocalyptic number.

It is an amenable number.

626989714464 is an abundant number, since it is smaller than the sum of its proper divisors (1180806837216).

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

626989714464 is a wasteful number, since it uses less digits than its factorization.

626989714464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14945462 (or 14945454 counting only the distinct ones).

The product of its digits is 125411328, while the sum is 66.

The spelling of 626989714464 in words is "six hundred twenty-six billion, nine hundred eighty-nine million, seven hundred fourteen thousand, four hundred sixty-four".