80854657770 has 16 divisors (see below), whose sum is σ = 194051178720. Its totient is φ = 21561242064.

The previous prime is 80854657747. The next prime is 80854657801. The reversal of 80854657770 is 7775645808.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 80854657770.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1347577600 + ... + 1347577659.

It is an arithmetic number, because the mean of its divisors is an integer number (12128198670).

Almost surely, 2^80854657770 is an apocalyptic number.

80854657770 is an abundant number, since it is smaller than the sum of its proper divisors (113196520950).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

80854657770 is a wasteful number, since it uses less digits than its factorization.

80854657770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2695155269.

The product of its (nonzero) digits is 13171200, while the sum is 57.

The spelling of 80854657770 in words is "eighty billion, eight hundred fifty-four million, six hundred fifty-seven thousand, seven hundred seventy".