15793397280 has 96 divisors (see below), whose sum is σ = 55276905600. Its totient is φ = 4211571456.

The previous prime is 15793397209. The next prime is 15793397297. The reversal of 15793397280 is 8279339751.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×15793397280² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

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, 1823620 + ... + 1832259.

It is an arithmetic number, because the mean of its divisors is an integer number (575801100).

Almost surely, 2^15793397280 is an apocalyptic number.

15793397280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15793397280 is an abundant number, since it is smaller than the sum of its proper divisors (39483508320).

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

15793397280 is a wasteful number, since it uses less digits than its factorization.

15793397280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3655903 (or 3655889 counting only the distinct ones).

The product of its (nonzero) digits is 2857680, while the sum is 54.

The spelling of 15793397280 in words is "fifteen billion, seven hundred ninety-three million, three hundred ninety-seven thousand, two hundred eighty".