23778143285 has 16 divisors (see below), whose sum is σ = 30762633216. Its totient is φ = 17539841088.

The previous prime is 23778143269. The next prime is 23778143297. The reversal of 23778143285 is 58234187732.

It is a cyclic number.

It is not a de Polignac number, because 23778143285 - 2⁴ = 23778143269 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 142709 + ... + 260618.

It is an arithmetic number, because the mean of its divisors is an integer number (1922664576).

Almost surely, 2^23778143285 is an apocalyptic number.

It is an amenable number.

23778143285 is a deficient number, since it is larger than the sum of its proper divisors (6984489931).

23778143285 is a wasteful number, since it uses less digits than its factorization.

23778143285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404252.

The product of its digits is 2257920, while the sum is 50.

The spelling of 23778143285 in words is "twenty-three billion, seven hundred seventy-eight million, one hundred forty-three thousand, two hundred eighty-five".