425173878056 has 32 divisors (see below), whose sum is σ = 798381144000. Its totient is φ = 212272482816.

The previous prime is 425173878053. The next prime is 425173878071. The reversal of 425173878056 is 650878371524.

It is a junction number, because it is equal to n+sod(n) for n = 425173877992 and 425173878010.

It is not an unprimeable number, because it can be changed into a prime (425173878053) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 15381560 + ... + 15409176.

It is an arithmetic number, because the mean of its divisors is an integer number (24949410750).

Almost surely, 2^425173878056 is an apocalyptic number.

It is an amenable number.

425173878056 is a deficient number, since it is larger than the sum of its proper divisors (373207265944).

425173878056 is a wasteful number, since it uses less digits than its factorization.

425173878056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30401 (or 30397 counting only the distinct ones).

The product of its (nonzero) digits is 11289600, while the sum is 56.

The spelling of 425173878056 in words is "four hundred twenty-five billion, one hundred seventy-three million, eight hundred seventy-eight thousand, fifty-six".