2797986816 has 297 divisors, whose sum is σ = 8830886961. Its totient is φ = 853106688.

The previous prime is 2797986749. The next prime is 2797986817. The reversal of 2797986816 is 6186897972.

The square root of 2797986816 is 52896.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 1467196416 + 1330790400 = 38304^2 + 36480^2 .

It is not an unprimeable number, because it can be changed into a prime (2797986817) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 96482290 + ... + 96482318.

Almost surely, 2^2797986816 is an apocalyptic number.

2797986816 is the 52896-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2797986816

2797986816 is an abundant number, since it is smaller than the sum of its proper divisors (6032900145).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2797986816 is a wasteful number, since it uses less digits than its factorization.

2797986816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122 (or 53 counting only the distinct ones).

The product of its digits is 18289152, while the sum is 63.

The cubic root of 2797986816 is about 1409.1218675878.

The spelling of 2797986816 in words is "two billion, seven hundred ninety-seven million, nine hundred eighty-six thousand, eight hundred sixteen".