157922002728 has 128 divisors (see below), whose sum is σ = 501639264000. Its totient is φ = 45093611520.

The previous prime is 157922002727. The next prime is 157922002789. The reversal of 157922002728 is 827200229751.

157922002728 is a `hidden beast` number, since 1 + 579 + 2 + 2 + 0 + 0 + 2 + 72 + 8 = 666.

It is not an unprimeable number, because it can be changed into a prime (157922002723) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2571808 + ... + 2632496.

It is an arithmetic number, because the mean of its divisors is an integer number (3919056750).

Almost surely, 2^157922002728 is an apocalyptic number.

157922002728 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 157922002728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (250819632000).

157922002728 is an abundant number, since it is smaller than the sum of its proper divisors (343717261272).

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

157922002728 is a wasteful number, since it uses less digits than its factorization.

157922002728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62432 (or 62422 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 45.

The spelling of 157922002728 in words is "one hundred fifty-seven billion, nine hundred twenty-two million, two thousand, seven hundred twenty-eight".