157787613792 has 144 divisors (see below), whose sum is σ = 466334511552. Its totient is φ = 52482038400.

The previous prime is 157787613761. The next prime is 157787613799. The reversal of 157787613792 is 297316787751.

157787613792 is a `hidden beast` number, since 1 + 5 + 7 + 7 + 8 + 7 + 613 + 7 + 9 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157787613799) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3609667 + ... + 3653117.

It is an arithmetic number, because the mean of its divisors is an integer number (3238434108).

Almost surely, 2^157787613792 is an apocalyptic number.

157787613792 is a gapful number since it is divisible by the number (12) 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 157787613792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (233167255776).

157787613792 is an abundant number, since it is smaller than the sum of its proper divisors (308546897760).

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

157787613792 is an equidigital number, since it uses as much as digits as its factorization.

157787613792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43943 (or 43923 counting only the distinct ones).

The product of its digits is 31116960, while the sum is 63.

The spelling of 157787613792 in words is "one hundred fifty-seven billion, seven hundred eighty-seven million, six hundred thirteen thousand, seven hundred ninety-two".