3156801813 has 24 divisors (see below), whose sum is σ = 5010685056. Its totient is φ = 1899240000.

The previous prime is 3156801749. The next prime is 3156801829. The reversal of 3156801813 is 3181086513.

3156801813 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3156801813 - 2⁶ = 3156801749 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3156801833) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 102813 + ... + 129938.

It is an arithmetic number, because the mean of its divisors is an integer number (208778544).

Almost surely, 2^3156801813 is an apocalyptic number.

3156801813 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

3156801813 is a deficient number, since it is larger than the sum of its proper divisors (1853883243).

3156801813 is a wasteful number, since it uses less digits than its factorization.

3156801813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232905 (or 232902 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 3156801813 is about 56185.4234922190. The cubic root of 3156801813 is about 1466.9515570952.

The spelling of 3156801813 in words is "three billion, one hundred fifty-six million, eight hundred one thousand, eight hundred thirteen".