157158729780 has 96 divisors (see below), whose sum is σ = 473960815104. Its totient is φ = 38679773184.

The previous prime is 157158729779. The next prime is 157158729797. The reversal of 157158729780 is 87927851751.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10762164 + ... + 10776756.

It is an arithmetic number, because the mean of its divisors is an integer number (4937091824).

Almost surely, 2^157158729780 is an apocalyptic number.

157158729780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

157158729780 is an abundant number, since it is smaller than the sum of its proper divisors (316802085324).

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

157158729780 is a wasteful number, since it uses less digits than its factorization.

157158729780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28425 (or 28423 counting only the distinct ones).

The product of its (nonzero) digits is 9878400, while the sum is 60.

The spelling of 157158729780 in words is "one hundred fifty-seven billion, one hundred fifty-eight million, seven hundred twenty-nine thousand, seven hundred eighty".