157170728830 has 32 divisors (see below), whose sum is σ = 302514782400. Its totient is φ = 58584307200.

The previous prime is 157170728821. The next prime is 157170728831. The reversal of 157170728830 is 38827071751.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157170728831) 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, 4559730 + ... + 4594069.

It is an arithmetic number, because the mean of its divisors is an integer number (9453586950).

Almost surely, 2^157170728830 is an apocalyptic number.

157170728830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

157170728830 is a deficient number, since it is larger than the sum of its proper divisors (145344053570).

157170728830 is a wasteful number, since it uses less digits than its factorization.

157170728830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9153924.

The product of its (nonzero) digits is 658560, while the sum is 49.

The spelling of 157170728830 in words is "one hundred fifty-seven billion, one hundred seventy million, seven hundred twenty-eight thousand, eight hundred thirty".