11671879716 has 72 divisors (see below), whose sum is σ = 34033970880. Its totient is φ = 3303648576.

The previous prime is 11671879711. The next prime is 11671879717. The reversal of 11671879716 is 61797817611.

It is a happy number.

It is a super-2 number, since 2×11671879716² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11671879711) 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, 189471 + ... + 243398.

It is an arithmetic number, because the mean of its divisors is an integer number (472694040).

Almost surely, 2^11671879716 is an apocalyptic number.

It is an amenable number.

11671879716 is an abundant number, since it is smaller than the sum of its proper divisors (22362091164).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11671879716 is a wasteful number, since it uses less digits than its factorization.

11671879716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432993 (or 432988 counting only the distinct ones).

The product of its digits is 889056, while the sum is 54.

The spelling of 11671879716 in words is "eleven billion, six hundred seventy-one million, eight hundred seventy-nine thousand, seven hundred sixteen".