841697971693 has 4 divisors (see below), whose sum is σ = 885997864960. Its totient is φ = 797398078428.

The previous prime is 841697971657. The next prime is 841697971717. The reversal of 841697971693 is 396179796148.

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 841697971693 - 2²¹ = 841695874541 is a prime.

It is a super-2 number, since 2×841697971693² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (841697971603) 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, 22149946605 + ... + 22149946642.

It is an arithmetic number, because the mean of its divisors is an integer number (221499466240).

Almost surely, 2^841697971693 is an apocalyptic number.

It is an amenable number.

841697971693 is a deficient number, since it is larger than the sum of its proper divisors (44299893267).

841697971693 is a wasteful number, since it uses less digits than its factorization.

841697971693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44299893266.

The product of its digits is 123451776, while the sum is 70.

The spelling of 841697971693 in words is "eight hundred forty-one billion, six hundred ninety-seven million, nine hundred seventy-one thousand, six hundred ninety-three".