80986036765 has 8 divisors (see below), whose sum is σ = 97185153240. Its totient is φ = 64787556672.

The previous prime is 80986036709. The next prime is 80986036841. The reversal of 80986036765 is 56763068908.

It can be written as a sum of positive squares in 4 ways, for example, as 6114301636 + 74871735129 = 78194^2 + 273627^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80986036765 is a prime.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 190867 + ... + 445423.

It is an arithmetic number, because the mean of its divisors is an integer number (12148144155).

Almost surely, 2^80986036765 is an apocalyptic number.

It is an amenable number.

80986036765 is a deficient number, since it is larger than the sum of its proper divisors (16199116475).

80986036765 is a wasteful number, since it uses less digits than its factorization.

80986036765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318191.

The product of its (nonzero) digits is 13063680, while the sum is 58.

The spelling of 80986036765 in words is "eighty billion, nine hundred eighty-six million, thirty-six thousand, seven hundred sixty-five".