11613832857 has 24 divisors (see below), whose sum is σ = 18340701600. Its totient is φ = 7023257280.

The previous prime is 11613832843. The next prime is 11613832907. The reversal of 11613832857 is 75823831611.

It is a happy number.

11613832857 is a `hidden beast` number, since 1 + 1 + 613 + 8 + 3 + 28 + 5 + 7 = 666.

It is not a de Polignac number, because 11613832857 - 2²⁴ = 11597055641 is a prime.

It is a super-2 number, since 2×11613832857² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11613832817) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 83107 + ... + 173592.

It is an arithmetic number, because the mean of its divisors is an integer number (764195900).

Almost surely, 2^11613832857 is an apocalyptic number.

It is an amenable number.

11613832857 is a deficient number, since it is larger than the sum of its proper divisors (6726868743).

11613832857 is a wasteful number, since it uses less digits than its factorization.

11613832857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257173 (or 257170 counting only the distinct ones).

The product of its digits is 241920, while the sum is 45.

The spelling of 11613832857 in words is "eleven billion, six hundred thirteen million, eight hundred thirty-two thousand, eight hundred fifty-seven".