628111378560 has 128 divisors (see below), whose sum is σ = 2002336459200. Its totient is φ = 167477006336.

The previous prime is 628111378549. The next prime is 628111378577. The reversal of 628111378560 is 65873111826.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (48).

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, 25710031 + ... + 25734449.

Almost surely, 2^628111378560 is an apocalyptic number.

628111378560 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

628111378560 is an abundant number, since it is smaller than the sum of its proper divisors (1374225080640).

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

628111378560 is a wasteful number, since it uses less digits than its factorization.

628111378560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37838 (or 37826 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 48.

The spelling of 628111378560 in words is "six hundred twenty-eight billion, one hundred eleven million, three hundred seventy-eight thousand, five hundred sixty".