80333193491 has 4 divisors (see below), whose sum is σ = 80341376400. Its totient is φ = 80325010584.

The previous prime is 80333193449. The next prime is 80333193517. The reversal of 80333193491 is 19439133308.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80333193491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80333193091) 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, 4076711 + ... + 4096368.

It is an arithmetic number, because the mean of its divisors is an integer number (20085344100).

Almost surely, 2^80333193491 is an apocalyptic number.

80333193491 is a deficient number, since it is larger than the sum of its proper divisors (8182909).

80333193491 is an equidigital number, since it uses as much as digits as its factorization.

80333193491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8182908.

The product of its (nonzero) digits is 209952, while the sum is 44.

The spelling of 80333193491 in words is "eighty billion, three hundred thirty-three million, one hundred ninety-three thousand, four hundred ninety-one".