80501688811 has 4 divisors (see below), whose sum is σ = 80853224800. Its totient is φ = 80150152824.

The previous prime is 80501688809. The next prime is 80501688851. The reversal of 80501688811 is 11888610508.

It is a happy number.

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 80501688811 - 2¹ = 80501688809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80501688851) 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, 175767651 + ... + 175768108.

It is an arithmetic number, because the mean of its divisors is an integer number (20213306200).

Almost surely, 2^80501688811 is an apocalyptic number.

80501688811 is a deficient number, since it is larger than the sum of its proper divisors (351535989).

80501688811 is a wasteful number, since it uses less digits than its factorization.

80501688811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351535988.

The product of its (nonzero) digits is 122880, while the sum is 46.

The spelling of 80501688811 in words is "eighty billion, five hundred one million, six hundred eighty-eight thousand, eight hundred eleven".