157432345881 has 4 divisors (see below), whose sum is σ = 209909794512. Its totient is φ = 104954897252.

The previous prime is 157432345871. The next prime is 157432345937. The reversal of 157432345881 is 188543234751.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 157432345881 - 2⁷ = 157432345753 is a prime.

It is a super-2 number, since 2×157432345881² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (157432345871) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26238724311 + ... + 26238724316.

It is an arithmetic number, because the mean of its divisors is an integer number (52477448628).

Almost surely, 2^157432345881 is an apocalyptic number.

It is an amenable number.

157432345881 is a deficient number, since it is larger than the sum of its proper divisors (52477448631).

157432345881 is an equidigital number, since it uses as much as digits as its factorization.

157432345881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52477448630.

The product of its digits is 3225600, while the sum is 51.

The spelling of 157432345881 in words is "one hundred fifty-seven billion, four hundred thirty-two million, three hundred forty-five thousand, eight hundred eighty-one".