65409423365379 has 4 divisors (see below), whose sum is σ = 87212564487176. Its totient is φ = 43606282243584.

The previous prime is 65409423365357. The next prime is 65409423365381. The reversal of 65409423365379 is 97356332490456.

It is a semiprime because it is the product of two primes.

It is a de Polignac number, because none of the positive numbers 2^k-65409423365379 is a prime.

It is a super-2 number, since 2×65409423365379² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65409423365399) 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, 10901570560894 + ... + 10901570560899.

It is an arithmetic number, because the mean of its divisors is an integer number (21803141121794).

Almost surely, 2^{65409423365379} is an apocalyptic number.

65409423365379 is a deficient number, since it is larger than the sum of its proper divisors (21803141121797).

65409423365379 is a wasteful number, since it uses less digits than its factorization.

65409423365379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21803141121796.

The product of its (nonzero) digits is 440899200, while the sum is 66.

The spelling of 65409423365379 in words is "sixty-five trillion, four hundred nine billion, four hundred twenty-three million, three hundred sixty-five thousand, three hundred seventy-nine".