2778772076 has 24 divisors (see below), whose sum is σ = 5003300400. Its totient is φ = 1349393472.

The previous prime is 2778772067. The next prime is 2778772081. The reversal of 2778772076 is 6702778772.

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, 66650 + ... + 99998.

It is an arithmetic number, because the mean of its divisors is an integer number (208470850).

Almost surely, 2^2778772076 is an apocalyptic number.

It is an amenable number.

2778772076 is a deficient number, since it is larger than the sum of its proper divisors (2224528324).

2778772076 is a wasteful number, since it uses less digits than its factorization.

2778772076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33953 (or 33951 counting only the distinct ones).

The product of its (nonzero) digits is 3226944, while the sum is 53.

The square root of 2778772076 is about 52714.0595666849. The cubic root of 2778772076 is about 1405.8888135480. Note that the first 4 decimals are identical.

The spelling of 2778772076 in words is "two billion, seven hundred seventy-eight million, seven hundred seventy-two thousand, seventy-six".