11571919682 has 8 divisors (see below), whose sum is σ = 17827011516. Its totient is φ = 5629582512.

The previous prime is 11571919651. The next prime is 11571919691. The reversal of 11571919682 is 28691917511.

It can be written as a sum of positive squares in 2 ways, for example, as 11571089761 + 829921 = 107569^2 + 911^2 .

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

It is a super-2 number, since 2×11571919682² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11571919682.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78188573 + ... + 78188720.

Almost surely, 2^11571919682 is an apocalyptic number.

11571919682 is a deficient number, since it is larger than the sum of its proper divisors (6255091834).

11571919682 is a wasteful number, since it uses less digits than its factorization.

11571919682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156377332.

The product of its digits is 272160, while the sum is 50.

The spelling of 11571919682 in words is "eleven billion, five hundred seventy-one million, nine hundred nineteen thousand, six hundred eighty-two".