23890452312 has 96 divisors (see below), whose sum is σ = 63030873600. Its totient is φ = 7542285120.

The previous prime is 23890452307. The next prime is 23890452353. The reversal of 23890452312 is 21325409832.

It is a super-2 number, since 2×23890452312² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1072989 + ... + 1095027.

It is an arithmetic number, because the mean of its divisors is an integer number (656571600).

Almost surely, 2^23890452312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23890452312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31515436800).

23890452312 is an abundant number, since it is smaller than the sum of its proper divisors (39140421288).

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

23890452312 is a wasteful number, since it uses less digits than its factorization.

23890452312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22157 (or 22122 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 39.

The spelling of 23890452312 in words is "twenty-three billion, eight hundred ninety million, four hundred fifty-two thousand, three hundred twelve".