80493720544 has 48 divisors (see below), whose sum is σ = 167424667200. Its totient is φ = 38032228864.

The previous prime is 80493720523. The next prime is 80493720569. The reversal of 80493720544 is 44502739408.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 80493720494 and 80493720503.

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, 879139 + ... + 966370.

It is an arithmetic number, because the mean of its divisors is an integer number (3488013900).

Almost surely, 2^80493720544 is an apocalyptic number.

It is an amenable number.

80493720544 is an abundant number, since it is smaller than the sum of its proper divisors (86930946656).

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

80493720544 is a wasteful number, since it uses less digits than its factorization.

80493720544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1845595 (or 1845587 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 46.

The spelling of 80493720544 in words is "eighty billion, four hundred ninety-three million, seven hundred twenty thousand, five hundred forty-four".