627643297320 has 512 divisors, whose sum is σ = 2230166131200. Its totient is φ = 139869683712.

The previous prime is 627643297313. The next prime is 627643297343. The reversal of 627643297320 is 23792346726.

It is a super-2 number, since 2×627643297320² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 87326767 + ... + 87333953.

It is an arithmetic number, because the mean of its divisors is an integer number (4355793225).

Almost surely, 2^627643297320 is an apocalyptic number.

627643297320 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 627643297320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1115083065600).

627643297320 is an abundant number, since it is smaller than the sum of its proper divisors (1602522833880).

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

627643297320 is a wasteful number, since it uses less digits than its factorization.

627643297320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7357 (or 7353 counting only the distinct ones).

The product of its (nonzero) digits is 4572288, while the sum is 51.

The spelling of 627643297320 in words is "six hundred twenty-seven billion, six hundred forty-three million, two hundred ninety-seven thousand, three hundred twenty".