6113422897921 has 4 divisors (see below), whose sum is σ = 6113428485700. Its totient is φ = 6113417310144.

The previous prime is 6113422897873. The next prime is 6113422897961. The reversal of 6113422897921 is 1297982243116.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 4540244716225 + 1573178181696 = 2130785^2 + 1254264^2 .

It is a cyclic number.

It is not a de Polignac number, because 6113422897921 - 2³¹ = 6111275414273 is a prime.

It is a super-2 number, since 2×6113422897921² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6113422897961) 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, 554436 + ... + 3540373.

It is an arithmetic number, because the mean of its divisors is an integer number (1528357121425).

Almost surely, 2^{6113422897921} is an apocalyptic number.

It is an amenable number.

6113422897921 is a deficient number, since it is larger than the sum of its proper divisors (5587779).

6113422897921 is a wasteful number, since it uses less digits than its factorization.

6113422897921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5587778.

The product of its digits is 2612736, while the sum is 55.

The spelling of 6113422897921 in words is "six trillion, one hundred thirteen billion, four hundred twenty-two million, eight hundred ninety-seven thousand, nine hundred twenty-one".