157317865848 has 256 divisors, whose sum is σ = 514595289600. Its totient is φ = 43901844480.

The previous prime is 157317865801. The next prime is 157317865849. The reversal of 157317865848 is 848568713751.

157317865848 is a `hidden beast` number, since 1 + 573 + 1 + 7 + 8 + 6 + 58 + 4 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157317865849) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 13677636 + ... + 13689132.

It is an arithmetic number, because the mean of its divisors is an integer number (2010137850).

Almost surely, 2^157317865848 is an apocalyptic number.

157317865848 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 157317865848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (257297644800).

157317865848 is an abundant number, since it is smaller than the sum of its proper divisors (357277423752).

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

157317865848 is a wasteful number, since it uses less digits than its factorization.

157317865848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11979 (or 11969 counting only the distinct ones).

The product of its digits is 45158400, while the sum is 63.

It can be divided in two parts, 157317 and 865848, that added together give a triangular number (1023165 = T₁₄₃₀).

The spelling of 157317865848 in words is "one hundred fifty-seven billion, three hundred seventeen million, eight hundred sixty-five thousand, eight hundred forty-eight".