2100693879 has 16 divisors (see below), whose sum is σ = 3164889600. Its totient is φ = 1376724888.

The previous prime is 2100693863. The next prime is 2100693883. The reversal of 2100693879 is 9783960012.

It is not a de Polignac number, because 2100693879 - 2⁴ = 2100693863 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2100693809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 657759 + ... + 660944.

It is an arithmetic number, because the mean of its divisors is an integer number (197805600).

Almost surely, 2^2100693879 is an apocalyptic number.

2100693879 is a deficient number, since it is larger than the sum of its proper divisors (1064195721).

2100693879 is a wasteful number, since it uses less digits than its factorization.

2100693879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1318771 (or 1318765 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The square root of 2100693879 is about 45833.3271648481. The cubic root of 2100693879 is about 1280.7201918354.

The spelling of 2100693879 in words is "two billion, one hundred million, six hundred ninety-three thousand, eight hundred seventy-nine".