80904612029 has 2 divisors, whose sum is σ = 80904612030. Its totient is φ = 80904612028.

The previous prime is 80904611993. The next prime is 80904612071. The reversal of 80904612029 is 92021640908.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 58383607129 + 22521004900 = 241627^2 + 150070^2 .

It is a cyclic number.

It is not a de Polignac number, because 80904612029 - 2²⁸ = 80636176573 is a prime.

It is a super-2 number, since 2×80904612029² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80904662029) 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 as a sum of consecutive naturals, namely, 40452306014 + 40452306015.

It is an arithmetic number, because the mean of its divisors is an integer number (40452306015).

Almost surely, 2^80904612029 is an apocalyptic number.

It is an amenable number.

80904612029 is a deficient number, since it is larger than the sum of its proper divisors (1).

80904612029 is an equidigital number, since it uses as much as digits as its factorization.

80904612029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 62208, while the sum is 41.

The spelling of 80904612029 in words is "eighty billion, nine hundred four million, six hundred twelve thousand, twenty-nine".