80834636678 has 16 divisors (see below), whose sum is σ = 127640862720. Its totient is φ = 38287923336.

The previous prime is 80834636677. The next prime is 80834636681. The reversal of 80834636678 is 87663643808.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80834636677) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 767651 + ... + 866577.

It is an arithmetic number, because the mean of its divisors is an integer number (7977553920).

Almost surely, 2^80834636678 is an apocalyptic number.

80834636678 is a deficient number, since it is larger than the sum of its proper divisors (46806226042).

80834636678 is a wasteful number, since it uses less digits than its factorization.

80834636678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120451.

The product of its (nonzero) digits is 27869184, while the sum is 59.

The spelling of 80834636678 in words is "eighty billion, eight hundred thirty-four million, six hundred thirty-six thousand, six hundred seventy-eight".