2790881156 has 24 divisors (see below), whose sum is σ = 5582880576. Its totient is φ = 1195852320.

The previous prime is 2790881087. The next prime is 2790881161. The reversal of 2790881156 is 6511880972.

2790881156 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 2790881156.

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, 272366 + ... + 282426.

It is an arithmetic number, because the mean of its divisors is an integer number (232620024).

Almost surely, 2^2790881156 is an apocalyptic number.

It is an amenable number.

2790881156 is an abundant number, since it is smaller than the sum of its proper divisors (2791999420).

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

2790881156 is a wasteful number, since it uses less digits than its factorization.

2790881156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19979 (or 19977 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 47.

The square root of 2790881156 is about 52828.7909761335. The cubic root of 2790881156 is about 1407.9280057724.

The spelling of 2790881156 in words is "two billion, seven hundred ninety million, eight hundred eighty-one thousand, one hundred fifty-six".