80902790079 has 8 divisors (see below), whose sum is σ = 108646433280. Its totient is φ = 53547170136.

The previous prime is 80902790071. The next prime is 80902790083. The reversal of 80902790079 is 97009720908.

It is a happy number.

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

It is not a de Polignac number, because 80902790079 - 2³ = 80902790071 is a prime.

It is a super-2 number, since 2×80902790079² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80902790071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97005327 + ... + 97006160.

It is an arithmetic number, because the mean of its divisors is an integer number (13580804160).

Almost surely, 2^80902790079 is an apocalyptic number.

80902790079 is a deficient number, since it is larger than the sum of its proper divisors (27743643201).

80902790079 is a wasteful number, since it uses less digits than its factorization.

80902790079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194011629.

The product of its (nonzero) digits is 571536, while the sum is 51.

The spelling of 80902790079 in words is "eighty billion, nine hundred two million, seven hundred ninety thousand, seventy-nine".