2151975608 has 64 divisors (see below), whose sum is σ = 4226826240. Its totient is φ = 1026000000.

The previous prime is 2151975593. The next prime is 2151975641. The reversal of 2151975608 is 8065791512.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8573483 + ... + 8573733.

It is an arithmetic number, because the mean of its divisors is an integer number (66044160).

Almost surely, 2^2151975608 is an apocalyptic number.

It is an amenable number.

2151975608 is a deficient number, since it is larger than the sum of its proper divisors (2074850632).

2151975608 is a wasteful number, since it uses less digits than its factorization.

2151975608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 660 (or 656 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 44.

The square root of 2151975608 is about 46389.3911147797. The cubic root of 2151975608 is about 1291.0580842871.

The spelling of 2151975608 in words is "two billion, one hundred fifty-one million, nine hundred seventy-five thousand, six hundred eight".