481694493569 has 4 divisors (see below), whose sum is σ = 481711671744. Its totient is φ = 481677315396.

The previous prime is 481694493563. The next prime is 481694493571. The reversal of 481694493569 is 965394496184.

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 a de Polignac number, because none of the positive numbers 2^k-481694493569 is a prime.

It is a super-2 number, since 2×481694493569² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 481694493499 and 481694493508.

It is not an unprimeable number, because it can be changed into a prime (481694493563) 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, 8546957 + ... + 8603130.

It is an arithmetic number, because the mean of its divisors is an integer number (120427917936).

Almost surely, 2^481694493569 is an apocalyptic number.

It is an amenable number.

481694493569 is a deficient number, since it is larger than the sum of its proper divisors (17178175).

481694493569 is a wasteful number, since it uses less digits than its factorization.

481694493569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17178174.

The product of its digits is 201553920, while the sum is 68.

The spelling of 481694493569 in words is "four hundred eighty-one billion, six hundred ninety-four million, four hundred ninety-three thousand, five hundred sixty-nine".