627979894512 has 40 divisors (see below), whose sum is σ = 1674613056000. Its totient is φ = 202574159040.

The previous prime is 627979894511. The next prime is 627979894517. The reversal of 627979894512 is 215498979726.

It is a super-2 number, since 2×627979894512² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (627979894511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 211013262 + ... + 211016237.

It is an arithmetic number, because the mean of its divisors is an integer number (41865326400).

Almost surely, 2^627979894512 is an apocalyptic number.

627979894512 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

627979894512 is an abundant number, since it is smaller than the sum of its proper divisors (1046633161488).

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

627979894512 is a wasteful number, since it uses less digits than its factorization.

627979894512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422029541 (or 422029535 counting only the distinct ones).

The product of its digits is 137168640, while the sum is 69.

The spelling of 627979894512 in words is "six hundred twenty-seven billion, nine hundred seventy-nine million, eight hundred ninety-four thousand, five hundred twelve".