814493497571 has 8 divisors (see below), whose sum is σ = 878333791440. Its totient is φ = 750822767712.

The previous prime is 814493497541. The next prime is 814493497603. The reversal of 814493497571 is 175794394418.

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-814493497571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (814493497541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42381020 + ... + 42400233.

It is an arithmetic number, because the mean of its divisors is an integer number (109791723930).

Almost surely, 2^814493497571 is an apocalyptic number.

814493497571 is a deficient number, since it is larger than the sum of its proper divisors (63840293869).

814493497571 is a wasteful number, since it uses less digits than its factorization.

814493497571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84782005.

The product of its digits is 30481920, while the sum is 62.

The spelling of 814493497571 in words is "eight hundred fourteen billion, four hundred ninety-three million, four hundred ninety-seven thousand, five hundred seventy-one".