814207725493 has 4 divisors (see below), whose sum is σ = 849608061408. Its totient is φ = 778807389580.

The previous prime is 814207725481. The next prime is 814207725517. The reversal of 814207725493 is 394527702418.

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.

It is a cyclic number.

It is not a de Polignac number, because 814207725493 - 2²⁵ = 814174171061 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 814207725493.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (814207725403) 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, 17700167923 + ... + 17700167968.

It is an arithmetic number, because the mean of its divisors is an integer number (212402015352).

Almost surely, 2^814207725493 is an apocalyptic number.

It is an amenable number.

814207725493 is a deficient number, since it is larger than the sum of its proper divisors (35400335915).

814207725493 is a wasteful number, since it uses less digits than its factorization.

814207725493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35400335914.

The product of its (nonzero) digits is 3386880, while the sum is 52.

The spelling of 814207725493 in words is "eight hundred fourteen billion, two hundred seven million, seven hundred twenty-five thousand, four hundred ninety-three".