80536345379 has 4 divisors (see below), whose sum is σ = 92041537584. Its totient is φ = 69031153176.

The previous prime is 80536345369. The next prime is 80536345403. The reversal of 80536345379 is 97354363508.

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

It is a cyclic number.

It is not a de Polignac number, because 80536345379 - 2⁴ = 80536345363 is a prime.

It is a super-2 number, since 2×80536345379² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 80536345379.

It is not an unprimeable number, because it can be changed into a prime (80536345349) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5752596092 + ... + 5752596105.

It is an arithmetic number, because the mean of its divisors is an integer number (23010384396).

Almost surely, 2^80536345379 is an apocalyptic number.

80536345379 is a deficient number, since it is larger than the sum of its proper divisors (11505192205).

80536345379 is a wasteful number, since it uses less digits than its factorization.

80536345379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11505192204.

The product of its (nonzero) digits is 8164800, while the sum is 53.

The spelling of 80536345379 in words is "eighty billion, five hundred thirty-six million, three hundred forty-five thousand, three hundred seventy-nine".