625694377460 has 12 divisors (see below), whose sum is σ = 1313958192708. Its totient is φ = 250277750976.

The previous prime is 625694377457. The next prime is 625694377471. The reversal of 625694377460 is 64773496526.

It can be written as a sum of positive squares in 2 ways, for example, as 353832246244 + 271862131216 = 594838^2 + 521404^2 .

It is a hoax number, since the sum of its digits (59) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 625694377460.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15642359417 + ... + 15642359456.

It is an arithmetic number, because the mean of its divisors is an integer number (109496516059).

Almost surely, 2^625694377460 is an apocalyptic number.

It is an amenable number.

625694377460 is an abundant number, since it is smaller than the sum of its proper divisors (688263815248).

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

625694377460 is a wasteful number, since it uses less digits than its factorization.

625694377460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31284718882 (or 31284718880 counting only the distinct ones).

The product of its (nonzero) digits is 45722880, while the sum is 59.

The spelling of 625694377460 in words is "six hundred twenty-five billion, six hundred ninety-four million, three hundred seventy-seven thousand, four hundred sixty".