80634817380 has 192 divisors, whose sum is σ = 247705113600. Its totient is φ = 19477532160.

The previous prime is 80634817357. The next prime is 80634817381. The reversal of 80634817380 is 8371843608.

It is not an unprimeable number, because it can be changed into a prime (80634817381) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 34007595 + ... + 34009965.

It is an arithmetic number, because the mean of its divisors is an integer number (1290130800).

Almost surely, 2^80634817380 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80634817380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (123852556800).

80634817380 is an abundant number, since it is smaller than the sum of its proper divisors (167070296220).

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

80634817380 is a wasteful number, since it uses less digits than its factorization.

80634817380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3194 (or 3192 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 48.

The spelling of 80634817380 in words is "eighty billion, six hundred thirty-four million, eight hundred seventeen thousand, three hundred eighty".