625190340864 has 144 divisors (see below), whose sum is σ = 1723939197120. Its totient is φ = 200901550080.

The previous prime is 625190340847. The next prime is 625190340871. The reversal of 625190340864 is 468043091526.

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, 14700559 + ... + 14743025.

It is an arithmetic number, because the mean of its divisors is an integer number (11971799980).

Almost surely, 2^625190340864 is an apocalyptic number.

625190340864 is a gapful number since it is divisible by the number (64) 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 625190340864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (861969598560).

625190340864 is an abundant number, since it is smaller than the sum of its proper divisors (1098748856256).

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

625190340864 is a wasteful number, since it uses less digits than its factorization.

625190340864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43176 (or 43162 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 48.

The spelling of 625190340864 in words is "six hundred twenty-five billion, one hundred ninety million, three hundred forty thousand, eight hundred sixty-four".