625398622080 has 256 divisors, whose sum is σ = 2111691850560. Its totient is φ = 156890562560.

The previous prime is 625398622061. The next prime is 625398622081. The reversal of 625398622080 is 80226893526.

It is a super-2 number, since 2×625398622080² (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 a congruent number.

It is not an unprimeable number, because it can be changed into a prime (625398622081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 126673372 + ... + 126678308.

Almost surely, 2^625398622080 is an apocalyptic number.

625398622080 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 625398622080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1055845925280).

625398622080 is an abundant number, since it is smaller than the sum of its proper divisors (1486293228480).

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

625398622080 is a wasteful number, since it uses less digits than its factorization.

625398622080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8857 (or 8845 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 51.

The spelling of 625398622080 in words is "six hundred twenty-five billion, three hundred ninety-eight million, six hundred twenty-two thousand, eighty".