23885390479 has 4 divisors (see below), whose sum is σ = 23886989784. Its totient is φ = 23883791176.

The previous prime is 23885390467. The next prime is 23885390509. The reversal of 23885390479 is 97409358832.

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 23885390479 - 2⁷ = 23885390351 is a prime.

It is a super-3 number, since 3×23885390479³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23885391479) 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, 777037 + ... + 807190.

It is an arithmetic number, because the mean of its divisors is an integer number (5971747446).

Almost surely, 2^23885390479 is an apocalyptic number.

23885390479 is a deficient number, since it is larger than the sum of its proper divisors (1599305).

23885390479 is a wasteful number, since it uses less digits than its factorization.

23885390479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1599304.

The product of its (nonzero) digits is 13063680, while the sum is 58.

The spelling of 23885390479 in words is "twenty-three billion, eight hundred eighty-five million, three hundred ninety thousand, four hundred seventy-nine".