15081801879 has 16 divisors (see below), whose sum is σ = 20665229312. Its totient is φ = 9776788128.

The previous prime is 15081801869. The next prime is 15081801881. The reversal of 15081801879 is 97810818051.

It is not a de Polignac number, because 15081801879 - 2⁴ = 15081801863 is a prime.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15081801859) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 143742 + ... + 225444.

It is an arithmetic number, because the mean of its divisors is an integer number (1291576832).

Almost surely, 2^15081801879 is an apocalyptic number.

15081801879 is a deficient number, since it is larger than the sum of its proper divisors (5583427433).

15081801879 is a wasteful number, since it uses less digits than its factorization.

15081801879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83406.

The product of its (nonzero) digits is 161280, while the sum is 48.

The spelling of 15081801879 in words is "fifteen billion, eighty-one million, eight hundred one thousand, eight hundred seventy-nine".