2131879726 has 8 divisors (see below), whose sum is σ = 3308089320. Its totient is φ = 1029183288.

The previous prime is 2131879709. The next prime is 2131879733. The reversal of 2131879726 is 6279781312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×2131879726² = 9089822332259670152, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 18378216 + ... + 18378331.

It is an arithmetic number, because the mean of its divisors is an integer number (413511165).

Almost surely, 2^2131879726 is an apocalyptic number.

2131879726 is a deficient number, since it is larger than the sum of its proper divisors (1176209594).

2131879726 is a wasteful number, since it uses less digits than its factorization.

2131879726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36756578.

The product of its digits is 254016, while the sum is 46.

The square root of 2131879726 is about 46172.2830927820. The cubic root of 2131879726 is about 1287.0267291973.

The spelling of 2131879726 in words is "two billion, one hundred thirty-one million, eight hundred seventy-nine thousand, seven hundred twenty-six".