80971044388 has 12 divisors (see below), whose sum is σ = 152599276060. Its totient is φ = 37371251232.

The previous prime is 80971044383. The next prime is 80971044419. The reversal of 80971044388 is 88344017908.

It can be written as a sum of positive squares in 2 ways, for example, as 37996925184 + 42974119204 = 194928^2 + 207302^2 .

It is a hoax number, since the sum of its digits (52) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (52), and also a Moran number because the ratio is a prime number: 1557135469 = 80971044388 / (8 + 0 + 9 + 7 + 1 + 0 + 4 + 4 + 3 + 8 + 8).

It is not an unprimeable number, because it can be changed into a prime (80971044383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 778567683 + ... + 778567786.

Almost surely, 2^80971044388 is an apocalyptic number.

It is an amenable number.

80971044388 is a deficient number, since it is larger than the sum of its proper divisors (71628231672).

80971044388 is a wasteful number, since it uses less digits than its factorization.

80971044388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1557135486 (or 1557135484 counting only the distinct ones).

The product of its (nonzero) digits is 1548288, while the sum is 52.

The spelling of 80971044388 in words is "eighty billion, nine hundred seventy-one million, forty-four thousand, three hundred eighty-eight".