15930880093 has 4 divisors (see below), whose sum is σ = 15939969628. Its totient is φ = 15921790560.

The previous prime is 15930880073. The next prime is 15930880111. The reversal of 15930880093 is 39008803951.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 39008803951 = 13 ⋅3000677227.

It can be written as a sum of positive squares in 2 ways, for example, as 265103524 + 15665776569 = 16282^2 + 125163^2 .

It is a cyclic number.

It is not a de Polignac number, because 15930880093 - 2⁵ = 15930880061 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 (15930880073) 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, 4542138 + ... + 4545643.

It is an arithmetic number, because the mean of its divisors is an integer number (3984992407).

Almost surely, 2^15930880093 is an apocalyptic number.

It is an amenable number.

15930880093 is a deficient number, since it is larger than the sum of its proper divisors (9089535).

15930880093 is an equidigital number, since it uses as much as digits as its factorization.

15930880093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9089534.

The product of its (nonzero) digits is 233280, while the sum is 46.

The spelling of 15930880093 in words is "fifteen billion, nine hundred thirty million, eight hundred eighty thousand, ninety-three".