80853964445931 has 64 divisors (see below), whose sum is σ = 116441120360448. Its totient is φ = 49724506718208.

The previous prime is 80853964445873. The next prime is 80853964446043. The reversal of 80853964445931 is 13954446935808.

It is not a de Polignac number, because 80853964445931 - 2⁶ = 80853964445867 is a prime.

It is a super-4 number, since 4×80853964445931⁴ (a number of 57 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (80853964445831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 242359066 + ... + 242692448.

It is an arithmetic number, because the mean of its divisors is an integer number (1819392505632).

Almost surely, 2^{80853964445931} is an apocalyptic number.

80853964445931 is a deficient number, since it is larger than the sum of its proper divisors (35587155914517).

80853964445931 is a wasteful number, since it uses less digits than its factorization.

80853964445931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333980.

The product of its (nonzero) digits is 447897600, while the sum is 69.

The spelling of 80853964445931 in words is "eighty trillion, eight hundred fifty-three billion, nine hundred sixty-four million, four hundred forty-five thousand, nine hundred thirty-one".