80502270637 has 4 divisors (see below), whose sum is σ = 80522156700. Its totient is φ = 80482384576.

The previous prime is 80502270623. The next prime is 80502270773. The reversal of 80502270637 is 73607220508.

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

It can be written as a sum of positive squares in 2 ways, for example, as 11798521641 + 68703748996 = 108621^2 + 262114^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80502270637 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 80502270637.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80502271637) 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, 9936958 + ... + 9945055.

It is an arithmetic number, because the mean of its divisors is an integer number (20130539175).

Almost surely, 2^80502270637 is an apocalyptic number.

It is an amenable number.

80502270637 is a deficient number, since it is larger than the sum of its proper divisors (19886063).

80502270637 is a wasteful number, since it uses less digits than its factorization.

80502270637 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19886062.

The product of its (nonzero) digits is 141120, while the sum is 40.

The spelling of 80502270637 in words is "eighty billion, five hundred two million, two hundred seventy thousand, six hundred thirty-seven".