157880771487 has 56 divisors (see below), whose sum is σ = 248953012224. Its totient is φ = 99883509264.

The previous prime is 157880771471. The next prime is 157880771539. The reversal of 157880771487 is 784177088751.

157880771487 is a `hidden beast` number, since 1 + 5 + 7 + 8 + 80 + 7 + 71 + 487 = 666.

It is not a de Polignac number, because 157880771487 - 2⁴ = 157880771471 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157880771437) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 2092338 + ... + 2166480.

It is an arithmetic number, because the mean of its divisors is an integer number (4445589504).

Almost surely, 2^157880771487 is an apocalyptic number.

157880771487 is a deficient number, since it is larger than the sum of its proper divisors (91072240737).

157880771487 is an equidigital number, since it uses as much as digits as its factorization.

157880771487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74311 (or 74296 counting only the distinct ones).

The product of its (nonzero) digits is 24586240, while the sum is 63.

The spelling of 157880771487 in words is "one hundred fifty-seven billion, eight hundred eighty million, seven hundred seventy-one thousand, four hundred eighty-seven".