80122186781 has 24 divisors (see below), whose sum is σ = 105655646880. Its totient is φ = 60056875872.

The previous prime is 80122186747. The next prime is 80122186789. The reversal of 80122186781 is 18768122108.

It is not a de Polignac number, because 80122186781 - 2²⁶ = 80055077917 is a prime.

It is a super-2 number, since 2×80122186781² (a number of 23 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80122186789) 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 in 23 ways as a sum of consecutive naturals, for example, 3297911 + ... + 3322116.

It is an arithmetic number, because the mean of its divisors is an integer number (4402318620).

Almost surely, 2^80122186781 is an apocalyptic number.

It is an amenable number.

80122186781 is a deficient number, since it is larger than the sum of its proper divisors (25533460099).

80122186781 is a wasteful number, since it uses less digits than its factorization.

80122186781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6620073 (or 6620066 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 44.

The spelling of 80122186781 in words is "eighty billion, one hundred twenty-two million, one hundred eighty-six thousand, seven hundred eighty-one".