80564091031 has 4 divisors (see below), whose sum is σ = 80796264552. Its totient is φ = 80331917512.

The previous prime is 80564091029. The next prime is 80564091067. The reversal of 80564091031 is 13019046508.

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 80564091031 - 2¹ = 80564091029 is a prime.

It is a super-2 number, since 2×80564091031² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80564098031) 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, 116086240 + ... + 116086933.

It is an arithmetic number, because the mean of its divisors is an integer number (20199066138).

Almost surely, 2^80564091031 is an apocalyptic number.

80564091031 is a deficient number, since it is larger than the sum of its proper divisors (232173521).

80564091031 is a wasteful number, since it uses less digits than its factorization.

80564091031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232173520.

The product of its (nonzero) digits is 25920, while the sum is 37.

The spelling of 80564091031 in words is "eighty billion, five hundred sixty-four million, ninety-one thousand, thirty-one".