80018100869 has 16 divisors (see below), whose sum is σ = 91921523328. Its totient is φ = 68233204032.

The previous prime is 80018100857. The next prime is 80018100893. The reversal of 80018100869 is 96800181008.

It is a de Polignac number, because none of the positive numbers 2^k-80018100869 is a prime.

It is a super-2 number, since 2×80018100869² (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 (80018100839) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2163359 + ... + 2200035.

It is an arithmetic number, because the mean of its divisors is an integer number (5745095208).

Almost surely, 2^80018100869 is an apocalyptic number.

It is an amenable number.

80018100869 is a deficient number, since it is larger than the sum of its proper divisors (11903422459).

80018100869 is a wasteful number, since it uses less digits than its factorization.

80018100869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38284.

The product of its (nonzero) digits is 27648, while the sum is 41.

The spelling of 80018100869 in words is "eighty billion, eighteen million, one hundred thousand, eight hundred sixty-nine".