157158729790 has 32 divisors (see below), whose sum is σ = 288363893760. Its totient is φ = 61656660000.

The previous prime is 157158729779. The next prime is 157158729797. The reversal of 157158729790 is 97927851751.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157158729797) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 539436 + ... + 778015.

It is an arithmetic number, because the mean of its divisors is an integer number (9011371680).

Almost surely, 2^157158729790 is an apocalyptic number.

157158729790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

157158729790 is a deficient number, since it is larger than the sum of its proper divisors (131205163970).

157158729790 is a wasteful number, since it uses less digits than its factorization.

157158729790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1317688.

The product of its (nonzero) digits is 11113200, while the sum is 61.

The spelling of 157158729790 in words is "one hundred fifty-seven billion, one hundred fifty-eight million, seven hundred twenty-nine thousand, seven hundred ninety".