423940293773 has 4 divisors (see below), whose sum is σ = 424098071040. Its totient is φ = 423782516508.

The previous prime is 423940293761. The next prime is 423940293811. The reversal of 423940293773 is 377392049324.

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 423940293773 - 2¹⁰ = 423940292749 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 (423940293473) 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, 78884603 + ... + 78889976.

It is an arithmetic number, because the mean of its divisors is an integer number (106024517760).

Almost surely, 2^423940293773 is an apocalyptic number.

It is an amenable number.

423940293773 is a deficient number, since it is larger than the sum of its proper divisors (157777267).

423940293773 is a wasteful number, since it uses less digits than its factorization.

423940293773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157777266.

The product of its (nonzero) digits is 6858432, while the sum is 53.

The spelling of 423940293773 in words is "four hundred twenty-three billion, nine hundred forty million, two hundred ninety-three thousand, seven hundred seventy-three".