80919853886 has 16 divisors (see below), whose sum is σ = 124717773840. Its totient is φ = 39348270720.

The previous prime is 80919853879. The next prime is 80919853897. The reversal of 80919853886 is 68835891908.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 89675 + ... + 412166.

It is an arithmetic number, because the mean of its divisors is an integer number (7794860865).

Almost surely, 2^80919853886 is an apocalyptic number.

80919853886 is a deficient number, since it is larger than the sum of its proper divisors (43797919954).

80919853886 is a wasteful number, since it uses less digits than its factorization.

80919853886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 504059.

The product of its (nonzero) digits is 29859840, while the sum is 65.

The spelling of 80919853886 in words is "eighty billion, nine hundred nineteen million, eight hundred fifty-three thousand, eight hundred eighty-six".