814813477013 has 4 divisors (see below), whose sum is σ = 814941942048. Its totient is φ = 814685011980.

The previous prime is 814813477003. The next prime is 814813477031. The reversal of 814813477013 is 310774318418.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 310774318418 = 2 ⋅155387159209.

It is a cyclic number.

It is not a de Polignac number, because 814813477013 - 2¹⁰ = 814813475989 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (814813477003) 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, 64223003 + ... + 64235688.

It is an arithmetic number, because the mean of its divisors is an integer number (203735485512).

Almost surely, 2^814813477013 is an apocalyptic number.

It is an amenable number.

814813477013 is a deficient number, since it is larger than the sum of its proper divisors (128465035).

814813477013 is a wasteful number, since it uses less digits than its factorization.

814813477013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128465034.

The product of its (nonzero) digits is 451584, while the sum is 47.

The spelling of 814813477013 in words is "eight hundred fourteen billion, eight hundred thirteen million, four hundred seventy-seven thousand, thirteen".