2765401264 has 20 divisors (see below), whose sum is σ = 5370352456. Its totient is φ = 1379503872.

The previous prime is 2765401259. The next prime is 2765401273. The reversal of 2765401264 is 4621045672.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 192654 + ... + 206509.

Almost surely, 2^2765401264 is an apocalyptic number.

It is an amenable number.

2765401264 is a deficient number, since it is larger than the sum of its proper divisors (2604951192).

2765401264 is a wasteful number, since it uses less digits than its factorization.

2765401264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399604 (or 399598 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 37.

The square root of 2765401264 is about 52587.0826724586. The cubic root of 2765401264 is about 1403.6302492479.

The spelling of 2765401264 in words is "two billion, seven hundred sixty-five million, four hundred one thousand, two hundred sixty-four".