80806734620 has 24 divisors (see below), whose sum is σ = 169700121024. Its totient is φ = 32321555136.

The previous prime is 80806734599. The next prime is 80806734653. The reversal of 80806734620 is 2643760808.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 731549 + ... + 834731.

It is an arithmetic number, because the mean of its divisors is an integer number (7070838376).

Almost surely, 2^80806734620 is an apocalyptic number.

It is an amenable number.

80806734620 is an abundant number, since it is smaller than the sum of its proper divisors (88893386404).

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

80806734620 is a wasteful number, since it uses less digits than its factorization.

80806734620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142349 (or 142347 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 44.

The spelling of 80806734620 in words is "eighty billion, eight hundred six million, seven hundred thirty-four thousand, six hundred twenty".