157768959872 has 32 divisors (see below), whose sum is σ = 316041889800. Its totient is φ = 78448642560.

The previous prime is 157768959871. The next prime is 157768959877. The reversal of 157768959872 is 278959867751.

It is a tau number, because it is divible by the number of its divisors (32).

It is a self number, because there is not a number n which added to its sum of digits gives 157768959872.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157768959871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3381722 + ... + 3428057.

Almost surely, 2^157768959872 is an apocalyptic number.

It is an amenable number.

157768959872 is an abundant number, since it is smaller than the sum of its proper divisors (158272929928).

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

157768959872 is an equidigital number, since it uses as much as digits as its factorization.

157768959872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6809974 (or 6809962 counting only the distinct ones).

The product of its digits is 533433600, while the sum is 74.

The spelling of 157768959872 in words is "one hundred fifty-seven billion, seven hundred sixty-eight million, nine hundred fifty-nine thousand, eight hundred seventy-two".