2691428008 has 16 divisors (see below), whose sum is σ = 5074311060. Its totient is φ = 1338278400.

The previous prime is 2691427873. The next prime is 2691428023. The reversal of 2691428008 is 8008241962.

2691428008 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2691326884 + 101124 = 51878^2 + 318^2 .

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, 927913 + ... + 930808.

Almost surely, 2^2691428008 is an apocalyptic number.

It is an amenable number.

2691428008 is a deficient number, since it is larger than the sum of its proper divisors (2382883052).

2691428008 is a wasteful number, since it uses less digits than its factorization.

2691428008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1858908 (or 1858904 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 40.

The square root of 2691428008 is about 51878.9746236373. The cubic root of 2691428008 is about 1391.0014707177.

The spelling of 2691428008 in words is "two billion, six hundred ninety-one million, four hundred twenty-eight thousand, eight".