425680187520 has 256 divisors, whose sum is σ = 1618114682880. Its totient is φ = 93067898880.

The previous prime is 425680187519. The next prime is 425680187533. The reversal of 425680187520 is 25781086524.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 425680187520.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 379416 + ... + 997655.

It is an arithmetic number, because the mean of its divisors is an integer number (6320760480).

Almost surely, 2^425680187520 is an apocalyptic number.

425680187520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

425680187520 is an abundant number, since it is smaller than the sum of its proper divisors (1192434495360).

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

425680187520 is a wasteful number, since it uses less digits than its factorization.

425680187520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1377123 (or 1377111 counting only the distinct ones).

The product of its (nonzero) digits is 1075200, while the sum is 48.

The spelling of 425680187520 in words is "four hundred twenty-five billion, six hundred eighty million, one hundred eighty-seven thousand, five hundred twenty".