157880780 has 12 divisors (see below), whose sum is σ = 331549680. Its totient is φ = 63152304.

The previous prime is 157880759. The next prime is 157880797. The reversal of 157880780 is 87088751.

It is a super-3 number, since 3×157880780³ (a number of 26 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3947000 + ... + 3947039.

It is an arithmetic number, because the mean of its divisors is an integer number (27629140).

Almost surely, 2^157880780 is an apocalyptic number.

157880780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

157880780 is an abundant number, since it is smaller than the sum of its proper divisors (173668900).

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

157880780 is a wasteful number, since it uses less digits than its factorization.

157880780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7894048 (or 7894046 counting only the distinct ones).

The product of its (nonzero) digits is 125440, while the sum is 44.

The square root of 157880780 is about 12565.0618780808. The cubic root of 157880780 is about 540.4760091734.

The spelling of 157880780 in words is "one hundred fifty-seven million, eight hundred eighty thousand, seven hundred eighty".