80724189015 has 12 divisors (see below), whose sum is σ = 139921927704. Its totient is φ = 43052900784.

The previous prime is 80724189001. The next prime is 80724189031. The reversal of 80724189015 is 51098142708.

80724189015 is a `hidden beast` number, since 80 + 72 + 418 + 90 + 1 + 5 = 666.

It is not a de Polignac number, because 80724189015 - 2⁴ = 80724188999 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 1793870867 = 80724189015 / (8 + 0 + 7 + 2 + 4 + 1 + 8 + 9 + 0 + 1 + 5).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 896935389 + ... + 896935478.

It is an arithmetic number, because the mean of its divisors is an integer number (11660160642).

Almost surely, 2^80724189015 is an apocalyptic number.

80724189015 is a deficient number, since it is larger than the sum of its proper divisors (59197738689).

80724189015 is a wasteful number, since it uses less digits than its factorization.

80724189015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1793870878 (or 1793870875 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 45.

The spelling of 80724189015 in words is "eighty billion, seven hundred twenty-four million, one hundred eighty-nine thousand, fifteen".