628985677320 has 384 divisors, whose sum is σ = 2744666346240. Its totient is φ = 120644536320.

The previous prime is 628985677297. The next prime is 628985677357. The reversal of 628985677320 is 23776589826.

628985677320 is a `hidden beast` number, since 62 + 8 + 9 + 8 + 567 + 7 + 3 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 512359 + ... + 1233078.

It is an arithmetic number, because the mean of its divisors is an integer number (7147568610).

Almost surely, 2^628985677320 is an apocalyptic number.

628985677320 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

628985677320 is an abundant number, since it is smaller than the sum of its proper divisors (2115680668920).

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

628985677320 is a wasteful number, since it uses less digits than its factorization.

628985677320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1745485 (or 1745478 counting only the distinct ones).

The product of its (nonzero) digits is 60963840, while the sum is 63.

The spelling of 628985677320 in words is "six hundred twenty-eight billion, nine hundred eighty-five million, six hundred seventy-seven thousand, three hundred twenty".