15722097792 has 128 divisors (see below), whose sum is σ = 42510744000. Its totient is φ = 5147197440.

The previous prime is 15722097779. The next prime is 15722097799. The reversal of 15722097792 is 29779022751.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×15722097792² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (15722097799) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11551192 + ... + 11552552.

Almost surely, 2^15722097792 is an apocalyptic number.

15722097792 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15722097792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21255372000).

15722097792 is an abundant number, since it is smaller than the sum of its proper divisors (26788646208).

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

15722097792 is a wasteful number, since it uses less digits than its factorization.

15722097792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1894 (or 1882 counting only the distinct ones).

The product of its (nonzero) digits is 1111320, while the sum is 51.

The spelling of 15722097792 in words is "fifteen billion, seven hundred twenty-two million, ninety-seven thousand, seven hundred ninety-two".