116405887517 has 4 divisors (see below), whose sum is σ = 118882608576. Its totient is φ = 113929166460.

The previous prime is 116405887471. The next prime is 116405887519. The reversal of 116405887517 is 715788504611.

It is a happy number.

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 116405887517 - 2⁶ = 116405887453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (116405887519) 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, 1238360459 + ... + 1238360552.

It is an arithmetic number, because the mean of its divisors is an integer number (29720652144).

Almost surely, 2^116405887517 is an apocalyptic number.

It is an amenable number.

116405887517 is a deficient number, since it is larger than the sum of its proper divisors (2476721059).

116405887517 is an equidigital number, since it uses as much as digits as its factorization.

116405887517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2476721058.

The product of its (nonzero) digits is 1881600, while the sum is 53.

The spelling of 116405887517 in words is "one hundred sixteen billion, four hundred five million, eight hundred eighty-seven thousand, five hundred seventeen".