80564799369 has 8 divisors (see below), whose sum is σ = 107423138592. Its totient is φ = 53708163200.

The previous prime is 80564799353. The next prime is 80564799383. The reversal of 80564799369 is 96399746508.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 80564799369 - 2⁴ = 80564799353 is a prime.

It is a super-2 number, since 2×80564799369² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (80564799319) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 310959 + ... + 507764.

It is an arithmetic number, because the mean of its divisors is an integer number (13427892324).

Almost surely, 2^80564799369 is an apocalyptic number.

It is an amenable number.

80564799369 is a deficient number, since it is larger than the sum of its proper divisors (26858339223).

80564799369 is a wasteful number, since it uses less digits than its factorization.

80564799369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 851527.

The product of its (nonzero) digits is 88179840, while the sum is 66.

The spelling of 80564799369 in words is "eighty billion, five hundred sixty-four million, seven hundred ninety-nine thousand, three hundred sixty-nine".