15934118768 has 80 divisors (see below), whose sum is σ = 33234390720. Its totient is φ = 7373721600.

The previous prime is 15934118719. The next prime is 15934118801. The reversal of 15934118768 is 86781143951.

It is a super-2 number, since 2×15934118768² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9828998 + ... + 9830618.

It is an arithmetic number, because the mean of its divisors is an integer number (415429884).

Almost surely, 2^15934118768 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15934118768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16617195360).

15934118768 is an abundant number, since it is smaller than the sum of its proper divisors (17300271952).

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

15934118768 is a wasteful number, since it uses less digits than its factorization.

15934118768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2226 (or 2220 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 53.

The spelling of 15934118768 in words is "fifteen billion, nine hundred thirty-four million, one hundred eighteen thousand, seven hundred sixty-eight".