80491749195 has 64 divisors (see below), whose sum is σ = 154992434688. Its totient is φ = 35145600000.

The previous prime is 80491749181. The next prime is 80491749203. The reversal of 80491749195 is 59194719408.

It is not a de Polignac number, because 80491749195 - 2¹² = 80491745099 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 369681 + ... + 545570.

It is an arithmetic number, because the mean of its divisors is an integer number (2421756792).

Almost surely, 2^80491749195 is an apocalyptic number.

80491749195 is a deficient number, since it is larger than the sum of its proper divisors (74500685493).

80491749195 is a wasteful number, since it uses less digits than its factorization.

80491749195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 915324.

The product of its (nonzero) digits is 3265920, while the sum is 57.

The spelling of 80491749195 in words is "eighty billion, four hundred ninety-one million, seven hundred forty-nine thousand, one hundred ninety-five".