80631423838 has 24 divisors (see below), whose sum is σ = 140848881912. Its totient is φ = 34518186864.

The previous prime is 80631423791. The next prime is 80631423839. The reversal of 80631423838 is 83832413608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80631423839) 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 11 ways as a sum of consecutive naturals, for example, 364681 + ... + 542452.

It is an arithmetic number, because the mean of its divisors is an integer number (5868703413).

Almost surely, 2^80631423838 is an apocalyptic number.

80631423838 is a deficient number, since it is larger than the sum of its proper divisors (60217458074).

80631423838 is a wasteful number, since it uses less digits than its factorization.

80631423838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 908056 (or 908049 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 46.

The spelling of 80631423838 in words is "eighty billion, six hundred thirty-one million, four hundred twenty-three thousand, eight hundred thirty-eight".