2778534974 has 8 divisors (see below), whose sum is σ = 4171618920. Its totient is φ = 1387995336.

The previous prime is 2778534959. The next prime is 2778534989. The reversal of 2778534974 is 4794358772.

It is a happy number.

2778534974 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2778534959) and next prime (2778534989).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 633344 + ... + 637715.

It is an arithmetic number, because the mean of its divisors is an integer number (521452365).

Almost surely, 2^2778534974 is an apocalyptic number.

2778534974 is a deficient number, since it is larger than the sum of its proper divisors (1393083946).

2778534974 is a wasteful number, since it uses less digits than its factorization.

2778534974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1272154.

The product of its digits is 11854080, while the sum is 56.

The square root of 2778534974 is about 52711.8105741019. The cubic root of 2778534974 is about 1405.8488260377.

The spelling of 2778534974 in words is "two billion, seven hundred seventy-eight million, five hundred thirty-four thousand, nine hundred seventy-four".