80853140961 has 6 divisors (see below), whose sum is σ = 116787870290. Its totient is φ = 53902093968.

The previous prime is 80853140957. The next prime is 80853140981. The reversal of 80853140961 is 16904135808.

80853140961 is a `hidden beast` number, since 80 + 85 + 31 + 409 + 61 = 666.

It can be written as a sum of positive squares in only one way, i.e., 59640966225 + 21212174736 = 244215^2 + 145644^2 .

It is not a de Polignac number, because 80853140961 - 2² = 80853140957 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80853140941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4491841156 + ... + 4491841173.

Almost surely, 2^80853140961 is an apocalyptic number.

It is an amenable number.

80853140961 is a deficient number, since it is larger than the sum of its proper divisors (35934729329).

80853140961 is a wasteful number, since it uses less digits than its factorization.

80853140961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8983682335 (or 8983682332 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 45.

The spelling of 80853140961 in words is "eighty billion, eight hundred fifty-three million, one hundred forty thousand, nine hundred sixty-one".