80720940054 has 32 divisors (see below), whose sum is σ = 162805095936. Its totient is φ = 26680224320.

The previous prime is 80720940043. The next prime is 80720940059. The reversal of 80720940054 is 45004902708.

It is a junction number, because it is equal to n+sod(n) for n = 80720939994 and 80720940021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80720940059) 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 15 ways as a sum of consecutive naturals, for example, 673759 + ... + 784469.

It is an arithmetic number, because the mean of its divisors is an integer number (5087659248).

Almost surely, 2^80720940054 is an apocalyptic number.

80720940054 is an abundant number, since it is smaller than the sum of its proper divisors (82084155882).

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

80720940054 is a wasteful number, since it uses less digits than its factorization.

80720940054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111740.

The product of its (nonzero) digits is 80640, while the sum is 39.

The spelling of 80720940054 in words is "eighty billion, seven hundred twenty million, nine hundred forty thousand, fifty-four".