80680680734 has 4 divisors (see below), whose sum is σ = 121021021104. Its totient is φ = 40340340366.

The previous prime is 80680680733. The next prime is 80680680739. The reversal of 80680680734 is 43708608608.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80680680733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20170170182 + ... + 20170170185.

It is an arithmetic number, because the mean of its divisors is an integer number (30255255276).

Almost surely, 2^80680680734 is an apocalyptic number.

80680680734 is a deficient number, since it is larger than the sum of its proper divisors (40340340370).

80680680734 is a wasteful number, since it uses less digits than its factorization.

80680680734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40340340369.

The product of its (nonzero) digits is 1548288, while the sum is 50.

The spelling of 80680680734 in words is "eighty billion, six hundred eighty million, six hundred eighty thousand, seven hundred thirty-four".