2604271978 has 64 divisors (see below), whose sum is σ = 5060102400. Its totient is φ = 975421440.

The previous prime is 2604271961. The next prime is 2604271997. The reversal of 2604271978 is 8791724062.

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, 1146628 + ... + 1148896.

It is an arithmetic number, because the mean of its divisors is an integer number (79064100).

Almost surely, 2^2604271978 is an apocalyptic number.

2604271978 is a deficient number, since it is larger than the sum of its proper divisors (2455830422).

2604271978 is a wasteful number, since it uses less digits than its factorization.

2604271978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2575.

The product of its (nonzero) digits is 338688, while the sum is 46.

The square root of 2604271978 is about 51032.0681336745. The cubic root of 2604271978 is about 1375.8215657420.

The spelling of 2604271978 in words is "two billion, six hundred four million, two hundred seventy-one thousand, nine hundred seventy-eight".