5151720156 has 24 divisors (see below), whose sum is σ = 13113469824. Its totient is φ = 1561127280.

The previous prime is 5151720143. The next prime is 5151720179. The reversal of 5151720156 is 6510271515.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19513960 + ... + 19514223.

It is an arithmetic number, because the mean of its divisors is an integer number (546394576).

Almost surely, 2^5151720156 is an apocalyptic number.

It is an amenable number.

5151720156 is an abundant number, since it is smaller than the sum of its proper divisors (7961749668).

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

5151720156 is a wasteful number, since it uses less digits than its factorization.

5151720156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39028201 (or 39028199 counting only the distinct ones).

The product of its (nonzero) digits is 10500, while the sum is 33.

The square root of 5151720156 is about 71775.4843661817. The cubic root of 5151720156 is about 1727.0997499603.

The spelling of 5151720156 in words is "five billion, one hundred fifty-one million, seven hundred twenty thousand, one hundred fifty-six".