80752449986 has 16 divisors (see below), whose sum is σ = 130452012600. Its totient is φ = 37268719488.

The previous prime is 80752449983. The next prime is 80752449997. The reversal of 80752449986 is 68994425708.

It can be written as a sum of positive squares in 4 ways, for example, as 27035580625 + 53716869361 = 164425^2 + 231769^2 .

It is not an unprimeable number, because it can be changed into a prime (80752449983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 692900 + ... + 801008.

Almost surely, 2^80752449986 is an apocalyptic number.

80752449986 is a deficient number, since it is larger than the sum of its proper divisors (49699562614).

80752449986 is a wasteful number, since it uses less digits than its factorization.

80752449986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136853.

The product of its (nonzero) digits is 34836480, while the sum is 62.

The spelling of 80752449986 in words is "eighty billion, seven hundred fifty-two million, four hundred forty-nine thousand, nine hundred eighty-six".