2759139956 has 24 divisors (see below), whose sum is σ = 4913244000. Its totient is φ = 1355383904.

The previous prime is 2759139937. The next prime is 2759139959. The reversal of 2759139956 is 6599319572.

It is a happy number.

It is a super-2 number, since 2×2759139956² = 15225706593591363872, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2759139959) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 684515 + ... + 688533.

It is an arithmetic number, because the mean of its divisors is an integer number (204718500).

Almost surely, 2^2759139956 is an apocalyptic number.

It is an amenable number.

2759139956 is a deficient number, since it is larger than the sum of its proper divisors (2154104044).

2759139956 is a wasteful number, since it uses less digits than its factorization.

2759139956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6991 (or 6989 counting only the distinct ones).

The product of its digits is 4592700, while the sum is 56.

The square root of 2759139956 is about 52527.5161796177. The cubic root of 2759139956 is about 1402.5701014038.

The spelling of 2759139956 in words is "two billion, seven hundred fifty-nine million, one hundred thirty-nine thousand, nine hundred fifty-six".