2797777972 has 72 divisors (see below), whose sum is σ = 5565532896. Its totient is φ = 1229844000.

The previous prime is 2797777901. The next prime is 2797777991.

It is a happy number.

2797777972 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27700722 + ... + 27700822.

It is an arithmetic number, because the mean of its divisors is an integer number (77299068).

Almost surely, 2^2797777972 is an apocalyptic number.

2797777972 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2797777972 is a deficient number, since it is larger than the sum of its proper divisors (2767754924).

2797777972 is an equidigital number, since it uses as much as digits as its factorization.

2797777972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203 (or 157 counting only the distinct ones).

The product of its digits is 38118276, while the sum is 64.

The square root of 2797777972 is about 52894.0258630405. The cubic root of 2797777972 is about 1409.0868073834.

The spelling of 2797777972 in words is "two billion, seven hundred ninety-seven million, seven hundred seventy-seven thousand, nine hundred seventy-two".