69794354621 has 4 divisors (see below), whose sum is σ = 69794913852. Its totient is φ = 69793795392.

The previous prime is 69794354599. The next prime is 69794354627. The reversal of 69794354621 is 12645349796.

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 22525507225 + 47268847396 = 150085^2 + 217414^2 .

It is a cyclic number.

It is not a de Polignac number, because 69794354621 - 2²² = 69790160317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69794354627) 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, 2411 + ... + 373623.

It is an arithmetic number, because the mean of its divisors is an integer number (17448728463).

Almost surely, 2^69794354621 is an apocalyptic number.

It is an amenable number.

69794354621 is a deficient number, since it is larger than the sum of its proper divisors (559231).

69794354621 is a wasteful number, since it uses less digits than its factorization.

69794354621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 559230.

The product of its digits is 9797760, while the sum is 56.

The spelling of 69794354621 in words is "sixty-nine billion, seven hundred ninety-four million, three hundred fifty-four thousand, six hundred twenty-one".