157171202894731 has 2 divisors, whose sum is σ = 157171202894732. Its totient is φ = 157171202894730.

The previous prime is 157171202894707. The next prime is 157171202894777. The reversal of 157171202894731 is 137498202171751.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 157171202894731 - 2²⁵ = 157171169340299 is a prime.

It is a super-2 number, since 2×157171202894731² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (157171202894701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78585601447365 + 78585601447366.

It is an arithmetic number, because the mean of its divisors is an integer number (78585601447366).

Almost surely, 2^{157171202894731} is an apocalyptic number.

157171202894731 is a deficient number, since it is larger than the sum of its proper divisors (1).

157171202894731 is an equidigital number, since it uses as much as digits as its factorization.

157171202894731 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5927040, while the sum is 58.

The spelling of 157171202894731 in words is "one hundred fifty-seven trillion, one hundred seventy-one billion, two hundred two million, eight hundred ninety-four thousand, seven hundred thirty-one".