425445931922 has 54 divisors (see below), whose sum is σ = 733685033991. Its totient is φ = 184875023960.

The previous prime is 425445931921. The next prime is 425445931943. The reversal of 425445931922 is 229139544524.

It can be written as a sum of positive squares in only one way, i.e., 212722965961 + 212722965961 = 461219^2 + 461219^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=461219.

It is a super-2 number, since 2×425445931922² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (425445931921) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 233375903 + ... + 233377725.

Almost surely, 2^425445931922 is an apocalyptic number.

425445931922 is a deficient number, since it is larger than the sum of its proper divisors (308239102069).

425445931922 is an equidigital number, since it uses as much as digits as its factorization.

425445931922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3716 (or 1859 counting only the distinct ones).

The product of its digits is 3110400, while the sum is 50.

Multiplying 425445931922 by its sum of digits (50), we get a square (21272296596100 = 4612190²).

The spelling of 425445931922 in words is "four hundred twenty-five billion, four hundred forty-five million, nine hundred thirty-one thousand, nine hundred twenty-two".