2779926960 has 80 divisors (see below), whose sum is σ = 8626885344. Its totient is φ = 740530176.

The previous prime is 2779926889. The next prime is 2779926967. The reversal of 2779926960 is 696299772.

It is a tau number, because it is divible by the number of its divisors (80).

It is a self number, because there is not a number n which added to its sum of digits gives 2779926960.

It is not an unprimeable number, because it can be changed into a prime (2779926967) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 242314 + ... + 253526.

Almost surely, 2^2779926960 is an apocalyptic number.

2779926960 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2779926960 is an abundant number, since it is smaller than the sum of its proper divisors (5846958384).

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

2779926960 is a wasteful number, since it uses less digits than its factorization.

2779926960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12262 (or 12256 counting only the distinct ones).

The product of its (nonzero) digits is 5143824, while the sum is 57.

The square root of 2779926960 is about 52725.0126600269. The cubic root of 2779926960 is about 1406.0835534751.

The spelling of 2779926960 in words is "two billion, seven hundred seventy-nine million, nine hundred twenty-six thousand, nine hundred sixty".