6157255857 has 8 divisors (see below), whose sum is σ = 8692596576. Its totient is φ = 3863376192.

The previous prime is 6157255831. The next prime is 6157255859. The reversal of 6157255857 is 7585527516.

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

It is not a de Polignac number, because 6157255857 - 2¹⁰ = 6157254833 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51), and also a Moran number because the ratio is a prime number: 120730507 = 6157255857 / (6 + 1 + 5 + 7 + 2 + 5 + 5 + 8 + 5 + 7).

It is not an unprimeable number, because it can be changed into a prime (6157255859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60365203 + ... + 60365304.

It is an arithmetic number, because the mean of its divisors is an integer number (1086574572).

Almost surely, 2^6157255857 is an apocalyptic number.

It is an amenable number.

6157255857 is a deficient number, since it is larger than the sum of its proper divisors (2535340719).

6157255857 is a wasteful number, since it uses less digits than its factorization.

6157255857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120730527.

The product of its digits is 2940000, while the sum is 51.

The square root of 6157255857 is about 78468.1837243605. The cubic root of 6157255857 is about 1832.8590440285.

The spelling of 6157255857 in words is "six billion, one hundred fifty-seven million, two hundred fifty-five thousand, eight hundred fifty-seven".