23878361640893 has 4 divisors (see below), whose sum is σ = 23907235114080. Its totient is φ = 23849488167708.

The previous prime is 23878361640869. The next prime is 23878361640899. The reversal of 23878361640893 is 39804616387832.

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 23878361640893 - 2¹² = 23878361636797 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 (23878361640899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14436735353 + ... + 14436737006.

It is an arithmetic number, because the mean of its divisors is an integer number (5976808778520).

Almost surely, 2^{23878361640893} is an apocalyptic number.

It is an amenable number.

23878361640893 is a deficient number, since it is larger than the sum of its proper divisors (28873473187).

23878361640893 is an equidigital number, since it uses as much as digits as its factorization.

23878361640893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28873473186.

The product of its (nonzero) digits is 250822656, while the sum is 68.

The spelling of 23878361640893 in words is "twenty-three trillion, eight hundred seventy-eight billion, three hundred sixty-one million, six hundred forty thousand, eight hundred ninety-three".