65373040823 has 4 divisors (see below), whose sum is σ = 67627283640. Its totient is φ = 63118798008.

The previous prime is 65373040781. The next prime is 65373040849. The reversal of 65373040823 is 32804037356.

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

It is a cyclic number.

It is not a de Polignac number, because 65373040823 - 2¹⁰ = 65373039799 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 (65373040883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1127121365 + ... + 1127121422.

It is an arithmetic number, because the mean of its divisors is an integer number (16906820910).

Almost surely, 2^65373040823 is an apocalyptic number.

65373040823 is a deficient number, since it is larger than the sum of its proper divisors (2254242817).

65373040823 is a wasteful number, since it uses less digits than its factorization.

65373040823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2254242816.

The product of its (nonzero) digits is 362880, while the sum is 41.

The spelling of 65373040823 in words is "sixty-five billion, three hundred seventy-three million, forty thousand, eight hundred twenty-three".