425664523415980 has 24 divisors (see below), whose sum is σ = 922730837857920. Its totient is φ = 164773363902720.

The previous prime is 425664523415909. The next prime is 425664523415981. The reversal of 425664523415980 is 89514325466524.

It is not an unprimeable number, because it can be changed into a prime (425664523415981) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 343277840845 + ... + 343277842084.

It is an arithmetic number, because the mean of its divisors is an integer number (38447118244080).

Almost surely, 2^{425664523415980} is an apocalyptic number.

It is an amenable number.

425664523415980 is an abundant number, since it is smaller than the sum of its proper divisors (497066314441940).

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

425664523415980 is a wasteful number, since it uses less digits than its factorization.

425664523415980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 686555682969 (or 686555682967 counting only the distinct ones).

The product of its (nonzero) digits is 248832000, while the sum is 64.

The spelling of 425664523415980 in words is "four hundred twenty-five trillion, six hundred sixty-four billion, five hundred twenty-three million, four hundred fifteen thousand, nine hundred eighty".