625477909680 has 360 divisors, whose sum is σ = 2289906450000. Its totient is φ = 152926046208.

The previous prime is 625477909627. The next prime is 625477909711. The reversal of 625477909680 is 86909774526.

625477909680 is a `hidden beast` number, since 6 + 2 + 547 + 7 + 9 + 0 + 9 + 6 + 80 = 666.

It is a tau number, because it is divible by the number of its divisors (360).

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 18113071 + ... + 18147569.

It is an arithmetic number, because the mean of its divisors is an integer number (6360851250).

Almost surely, 2^625477909680 is an apocalyptic number.

625477909680 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 625477909680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1144953225000).

625477909680 is an abundant number, since it is smaller than the sum of its proper divisors (1664428540320).

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

625477909680 is a wasteful number, since it uses less digits than its factorization.

625477909680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34693 (or 34671 counting only the distinct ones).

The product of its (nonzero) digits is 45722880, while the sum is 63.

The spelling of 625477909680 in words is "six hundred twenty-five billion, four hundred seventy-seven million, nine hundred nine thousand, six hundred eighty".