2815992081 has 64 divisors (see below), whose sum is σ = 5096079360. Its totient is φ = 1500145920.

The previous prime is 2815992073. The next prime is 2815992083. The reversal of 2815992081 is 1802995182.

It is not a de Polignac number, because 2815992081 - 2³ = 2815992073 is a prime.

It is a super-2 number, since 2×2815992081² = 15859622800509421122, which contains 22 as substring.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (2815992083) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 339696 + ... + 347886.

It is an arithmetic number, because the mean of its divisors is an integer number (79626240).

Almost surely, 2^2815992081 is an apocalyptic number.

2815992081 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2815992081 is a deficient number, since it is larger than the sum of its proper divisors (2280087279).

2815992081 is a wasteful number, since it uses less digits than its factorization.

2815992081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8331 (or 8325 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 45.

The square root of 2815992081 is about 53065.9220309984. The cubic root of 2815992081 is about 1412.1380104157.

The spelling of 2815992081 in words is "two billion, eight hundred fifteen million, nine hundred ninety-two thousand, eighty-one".