426931616197 has 4 divisors (see below), whose sum is σ = 449401701280. Its totient is φ = 404461531116.

The previous prime is 426931616183. The next prime is 426931616203. The reversal of 426931616197 is 791616139624.

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 426931616197 - 2¹¹ = 426931614149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (426931616107) 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, 11235042513 + ... + 11235042550.

It is an arithmetic number, because the mean of its divisors is an integer number (112350425320).

Almost surely, 2^426931616197 is an apocalyptic number.

It is an amenable number.

426931616197 is a deficient number, since it is larger than the sum of its proper divisors (22470085083).

426931616197 is a wasteful number, since it uses less digits than its factorization.

426931616197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22470085082.

The product of its digits is 2939328, while the sum is 55.

The spelling of 426931616197 in words is "four hundred twenty-six billion, nine hundred thirty-one million, six hundred sixteen thousand, one hundred ninety-seven".