80824015901 has 4 divisors (see below), whose sum is σ = 82795333404. Its totient is φ = 78852698400.

The previous prime is 80824015879. The next prime is 80824015967. The reversal of 80824015901 is 10951042808.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 28599883225 + 52224132676 = 169115^2 + 228526^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80824015901 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 (80824015001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 985658690 + ... + 985658771.

It is an arithmetic number, because the mean of its divisors is an integer number (20698833351).

Almost surely, 2^80824015901 is an apocalyptic number.

It is an amenable number.

80824015901 is a deficient number, since it is larger than the sum of its proper divisors (1971317503).

80824015901 is a wasteful number, since it uses less digits than its factorization.

80824015901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1971317502.

The product of its (nonzero) digits is 23040, while the sum is 38.

The spelling of 80824015901 in words is "eighty billion, eight hundred twenty-four million, fifteen thousand, nine hundred one".