2278764056 has 8 divisors (see below), whose sum is σ = 4272682620. Its totient is φ = 1139382024.

The previous prime is 2278764043. The next prime is 2278764071. The reversal of 2278764056 is 6504678722.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×2278764056² = 10385531245835142272, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2278764056.

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, 142422746 + ... + 142422761.

Almost surely, 2^2278764056 is an apocalyptic number.

It is an amenable number.

2278764056 is a deficient number, since it is larger than the sum of its proper divisors (1993918564).

2278764056 is a wasteful number, since it uses less digits than its factorization.

2278764056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284845513 (or 284845509 counting only the distinct ones).

The product of its (nonzero) digits is 1128960, while the sum is 47.

The square root of 2278764056 is about 47736.4017915050. The cubic root of 2278764056 is about 1315.9310068134.

The spelling of 2278764056 in words is "two billion, two hundred seventy-eight million, seven hundred sixty-four thousand, fifty-six".