23918239212 has 48 divisors (see below), whose sum is σ = 66555105792. Its totient is φ = 6536661120.

The previous prime is 23918239211. The next prime is 23918239217. The reversal of 23918239212 is 21293281932.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (23918239211) 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 15 ways as a sum of consecutive naturals, for example, 6188089 + ... + 6191952.

It is an arithmetic number, because the mean of its divisors is an integer number (1386564704).

Almost surely, 2^23918239212 is an apocalyptic number.

It is an amenable number.

23918239212 is an abundant number, since it is smaller than the sum of its proper divisors (42636866580).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23918239212 is a wasteful number, since it uses less digits than its factorization.

23918239212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12380078 (or 12380076 counting only the distinct ones).

The product of its digits is 93312, while the sum is 42.

The spelling of 23918239212 in words is "twenty-three billion, nine hundred eighteen million, two hundred thirty-nine thousand, two hundred twelve".