157172890443 has 16 divisors (see below), whose sum is σ = 210119616000. Its totient is φ = 104504180000.

The previous prime is 157172890411. The next prime is 157172890487. The reversal of 157172890443 is 344098271751.

It is a cyclic number.

It is not a de Polignac number, because 157172890443 - 2⁵ = 157172890411 is a prime.

It is not an unprimeable number, because it can be changed into a prime (157172891443) 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, 5452318 + ... + 5481068.

It is an arithmetic number, because the mean of its divisors is an integer number (13132476000).

Almost surely, 2^157172890443 is an apocalyptic number.

157172890443 is a deficient number, since it is larger than the sum of its proper divisors (52946725557).

157172890443 is a wasteful number, since it uses less digits than its factorization.

157172890443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33522.

The product of its (nonzero) digits is 1693440, while the sum is 51.

The spelling of 157172890443 in words is "one hundred fifty-seven billion, one hundred seventy-two million, eight hundred ninety thousand, four hundred forty-three".