23345400512 has 56 divisors (see below), whose sum is σ = 53005024800. Its totient is φ = 9993646080.

The previous prime is 23345400497. The next prime is 23345400523. The reversal of 23345400512 is 21500454332.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (56).

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 365114 + ... + 424262.

It is an arithmetic number, because the mean of its divisors is an integer number (946518300).

Almost surely, 2^23345400512 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 23345400512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26502512400).

23345400512 is an abundant number, since it is smaller than the sum of its proper divisors (29659624288).

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

23345400512 is an equidigital number, since it uses as much as digits as its factorization.

23345400512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60049 (or 60039 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 29.

Adding to 23345400512 its reverse (21500454332), we get a palindrome (44845854844).

The spelling of 23345400512 in words is "twenty-three billion, three hundred forty-five million, four hundred thousand, five hundred twelve".