427191081604 has 24 divisors (see below), whose sum is σ = 857129390208. Its totient is φ = 182493200640.

The previous prime is 427191081589. The next prime is 427191081619. The reversal of 427191081604 is 406180191724.

It is an interprime number because it is at equal distance from previous prime (427191081589) and next prime (427191081619).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24519949 + ... + 24537364.

It is an arithmetic number, because the mean of its divisors is an integer number (35713724592).

Almost surely, 2^427191081604 is an apocalyptic number.

It is an amenable number.

427191081604 is an abundant number, since it is smaller than the sum of its proper divisors (429938308604).

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

427191081604 is a wasteful number, since it uses less digits than its factorization.

427191081604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49057635 (or 49057633 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 43.

The spelling of 427191081604 in words is "four hundred twenty-seven billion, one hundred ninety-one million, eighty-one thousand, six hundred four".