2155793739 has 16 divisors (see below), whose sum is σ = 3136765824. Its totient is φ = 1306097600.

The previous prime is 2155793729. The next prime is 2155793779. The reversal of 2155793739 is 9373975512.

2155793739 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 2155793739 - 2⁸ = 2155793483 is a prime.

It is a super-2 number, since 2×2155793739² = 9294893290223200242, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2155793691 and 2155793700.

It is not an unprimeable number, because it can be changed into a prime (2155793719) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 105847 + ... + 124559.

It is an arithmetic number, because the mean of its divisors is an integer number (196047864).

Almost surely, 2^2155793739 is an apocalyptic number.

2155793739 is a deficient number, since it is larger than the sum of its proper divisors (980972085).

2155793739 is a wasteful number, since it uses less digits than its factorization.

2155793739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22218.

The product of its digits is 1786050, while the sum is 51.

The square root of 2155793739 is about 46430.5259392999. The cubic root of 2155793739 is about 1291.8211840807.

The spelling of 2155793739 in words is "two billion, one hundred fifty-five million, seven hundred ninety-three thousand, seven hundred thirty-nine".