5156261720 has 32 divisors (see below), whose sum is σ = 11609524800. Its totient is φ = 2061093888.

The previous prime is 5156261701. The next prime is 5156261749. The reversal of 5156261720 is 271626515.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16136 + ... + 102824.

It is an arithmetic number, because the mean of its divisors is an integer number (362797650).

Almost surely, 2^5156261720 is an apocalyptic number.

It is an amenable number.

5156261720 is an abundant number, since it is smaller than the sum of its proper divisors (6453263080).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5156261720 is a wasteful number, since it uses less digits than its factorization.

5156261720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88187 (or 88183 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 35.

The square root of 5156261720 is about 71807.1146892841. The cubic root of 5156261720 is about 1727.6071164337.

The spelling of 5156261720 in words is "five billion, one hundred fifty-six million, two hundred sixty-one thousand, seven hundred twenty".