814398716491 has 8 divisors (see below), whose sum is σ = 827766715968. Its totient is φ = 801031272000.

The previous prime is 814398716471. The next prime is 814398716519. The reversal of 814398716491 is 194617893418.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 814398716491 - 2¹¹ = 814398714443 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (61).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (814398716471) 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, 3671886 + ... + 3887356.

It is an arithmetic number, because the mean of its divisors is an integer number (103470839496).

Almost surely, 2^814398716491 is an apocalyptic number.

814398716491 is a deficient number, since it is larger than the sum of its proper divisors (13367999477).

814398716491 is a wasteful number, since it uses less digits than its factorization.

814398716491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277493.

The product of its digits is 10450944, while the sum is 61.

The spelling of 814398716491 in words is "eight hundred fourteen billion, three hundred ninety-eight million, seven hundred sixteen thousand, four hundred ninety-one".