80794539138 has 16 divisors (see below), whose sum is σ = 161616690720. Its totient is φ = 26926910976.

The previous prime is 80794539131. The next prime is 80794539149. The reversal of 80794539138 is 83193549708.

It is not an unprimeable number, because it can be changed into a prime (80794539131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1112383 + ... + 1182786.

It is an arithmetic number, because the mean of its divisors is an integer number (10101043170).

Almost surely, 2^80794539138 is an apocalyptic number.

80794539138 is an abundant number, since it is smaller than the sum of its proper divisors (80822151582).

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

80794539138 is a wasteful number, since it uses less digits than its factorization.

80794539138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2301041.

The product of its (nonzero) digits is 6531840, while the sum is 57.

The spelling of 80794539138 in words is "eighty billion, seven hundred ninety-four million, five hundred thirty-nine thousand, one hundred thirty-eight".