2634879278 has 4 divisors (see below), whose sum is σ = 3952318920. Its totient is φ = 1317439638.

The previous prime is 2634879263. The next prime is 2634879281. The reversal of 2634879278 is 8729784362.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 658719818 + ... + 658719821.

It is an arithmetic number, because the mean of its divisors is an integer number (988079730).

Almost surely, 2^2634879278 is an apocalyptic number.

2634879278 is a deficient number, since it is larger than the sum of its proper divisors (1317439642).

2634879278 is a wasteful number, since it uses less digits than its factorization.

2634879278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1317439641.

The product of its digits is 8128512, while the sum is 56.

The square root of 2634879278 is about 51331.0751689461. The cubic root of 2634879278 is about 1381.1904727648.

The spelling of 2634879278 in words is "two billion, six hundred thirty-four million, eight hundred seventy-nine thousand, two hundred seventy-eight".