157471751542745 has 4 divisors (see below), whose sum is σ = 188966101851300. Its totient is φ = 125977401234192.

The previous prime is 157471751542687. The next prime is 157471751542813. The reversal of 157471751542745 is 547245157174751.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 21970790664601 + 135500960878144 = 4687301^2 + 11640488^2 .

It is a cyclic number.

It is not a de Polignac number, because 157471751542745 - 2¹² = 157471751538649 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15747175154270 + ... + 15747175154279.

It is an arithmetic number, because the mean of its divisors is an integer number (47241525462825).

Almost surely, 2^{157471751542745} is an apocalyptic number.

It is an amenable number.

157471751542745 is a deficient number, since it is larger than the sum of its proper divisors (31494350308555).

157471751542745 is an equidigital number, since it uses as much as digits as its factorization.

157471751542745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31494350308554.

The product of its digits is 192080000, while the sum is 65.

The spelling of 157471751542745 in words is "one hundred fifty-seven trillion, four hundred seventy-one billion, seven hundred fifty-one million, five hundred forty-two thousand, seven hundred forty-five".