23838321757 has 4 divisors (see below), whose sum is σ = 25240575996. Its totient is φ = 22436067520.

The previous prime is 23838321743. The next prime is 23838321761. The reversal of 23838321757 is 75712383832.

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

It can be written as a sum of positive squares in 2 ways, for example, as 15531639876 + 8306681881 = 124626^2 + 91141^2 .

It is a cyclic number.

It is not a de Polignac number, because 23838321757 - 2¹⁵ = 23838288989 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23838321757.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23838321737) 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, 701127094 + ... + 701127127.

It is an arithmetic number, because the mean of its divisors is an integer number (6310143999).

Almost surely, 2^23838321757 is an apocalyptic number.

It is an amenable number.

23838321757 is a deficient number, since it is larger than the sum of its proper divisors (1402254239).

23838321757 is a wasteful number, since it uses less digits than its factorization.

23838321757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1402254238.

The product of its digits is 1693440, while the sum is 49.

The spelling of 23838321757 in words is "twenty-three billion, eight hundred thirty-eight million, three hundred twenty-one thousand, seven hundred fifty-seven".