80108720707 has 4 divisors (see below), whose sum is σ = 80109302976. Its totient is φ = 80108138440.

The previous prime is 80108720701. The next prime is 80108720761. The reversal of 80108720707 is 70702780108.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 80108720707 - 2¹¹ = 80108718659 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 80108720707.

It is not an unprimeable number, because it can be changed into a prime (80108720701) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43278 + ... + 402604.

It is an arithmetic number, because the mean of its divisors is an integer number (20027325744).

Almost surely, 2^80108720707 is an apocalyptic number.

80108720707 is a deficient number, since it is larger than the sum of its proper divisors (582269).

80108720707 is a wasteful number, since it uses less digits than its factorization.

80108720707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 582268.

The product of its (nonzero) digits is 43904, while the sum is 40.

The spelling of 80108720707 in words is "eighty billion, one hundred eight million, seven hundred twenty thousand, seven hundred seven".