15916428863 has 4 divisors (see below), whose sum is σ = 16005347640. Its totient is φ = 15827510088.

The previous prime is 15916428841. The next prime is 15916428893. The reversal of 15916428863 is 36882461951.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36882461951 = 47 ⋅784733233.

It is a cyclic number.

It is not a de Polignac number, because 15916428863 - 2²⁸ = 15647993407 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 (15916428833) 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, 44459120 + ... + 44459477.

It is an arithmetic number, because the mean of its divisors is an integer number (4001336910).

Almost surely, 2^15916428863 is an apocalyptic number.

15916428863 is a deficient number, since it is larger than the sum of its proper divisors (88918777).

15916428863 is an equidigital number, since it uses as much as digits as its factorization.

15916428863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88918776.

The product of its digits is 2488320, while the sum is 53.

The spelling of 15916428863 in words is "fifteen billion, nine hundred sixteen million, four hundred twenty-eight thousand, eight hundred sixty-three".