157859297431 has 8 divisors (see below), whose sum is σ = 177765308928. Its totient is φ = 138879147000.

The previous prime is 157859297413. The next prime is 157859297437. The reversal of 157859297431 is 134792958751.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 157859297431 - 2⁷ = 157859297303 is a prime.

It is a super-2 number, since 2×157859297431² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 157859297431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157859297437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 231464905 + ... + 231465586.

It is an arithmetic number, because the mean of its divisors is an integer number (22220663616).

Almost surely, 2^157859297431 is an apocalyptic number.

157859297431 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

157859297431 is a deficient number, since it is larger than the sum of its proper divisors (19906011497).

157859297431 is a wasteful number, since it uses less digits than its factorization.

157859297431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 462930533.

The product of its digits is 19051200, while the sum is 61.

The spelling of 157859297431 in words is "one hundred fifty-seven billion, eight hundred fifty-nine million, two hundred ninety-seven thousand, four hundred thirty-one".