116679451921 has 4 divisors (see below), whose sum is σ = 116688265200. Its totient is φ = 116670638644.

The previous prime is 116679451871. The next prime is 116679451949. The reversal of 116679451921 is 129154976611.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 116679451921 - 2¹⁹ = 116678927633 is a prime.

It is a super-2 number, since 2×116679451921² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (116679451621) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4386751 + ... + 4413268.

It is an arithmetic number, because the mean of its divisors is an integer number (29172066300).

Almost surely, 2^116679451921 is an apocalyptic number.

It is an amenable number.

116679451921 is a deficient number, since it is larger than the sum of its proper divisors (8813279).

116679451921 is an equidigital number, since it uses as much as digits as its factorization.

116679451921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8813278.

The product of its digits is 816480, while the sum is 52.

The spelling of 116679451921 in words is "one hundred sixteen billion, six hundred seventy-nine million, four hundred fifty-one thousand, nine hundred twenty-one".