80724825999 has 6 divisors (see below), whose sum is σ = 116602526456. Its totient is φ = 53816550660.

The previous prime is 80724825911. The next prime is 80724826019. The reversal of 80724825999 is 99952842708.

It is a happy number.

80724825999 is a `hidden beast` number, since 80 + 72 + 482 + 5 + 9 + 9 + 9 = 666.

It is not a de Polignac number, because 80724825999 - 2⁸ = 80724825743 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 (80724826999) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4484712547 + ... + 4484712564.

Almost surely, 2^80724825999 is an apocalyptic number.

80724825999 is a deficient number, since it is larger than the sum of its proper divisors (35877700457).

80724825999 is a wasteful number, since it uses less digits than its factorization.

80724825999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8969425117 (or 8969425114 counting only the distinct ones).

The product of its (nonzero) digits is 26127360, while the sum is 63.

The spelling of 80724825999 in words is "eighty billion, seven hundred twenty-four million, eight hundred twenty-five thousand, nine hundred ninety-nine".