15216577879 has 8 divisors (see below), whose sum is σ = 15507135072. Its totient is φ = 14926148640.

The previous prime is 15216577847. The next prime is 15216577897. The reversal of 15216577879 is 97877561251.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 15216577879 - 2⁵ = 15216577847 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 (15216577279) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 228102 + ... + 287164.

It is an arithmetic number, because the mean of its divisors is an integer number (1938391884).

Almost surely, 2^15216577879 is an apocalyptic number.

15216577879 is a deficient number, since it is larger than the sum of its proper divisors (290557193).

15216577879 is an equidigital number, since it uses as much as digits as its factorization.

15216577879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63977.

The product of its digits is 7408800, while the sum is 58.

The spelling of 15216577879 in words is "fifteen billion, two hundred sixteen million, five hundred seventy-seven thousand, eight hundred seventy-nine".