23890745652 has 24 divisors (see below), whose sum is σ = 56146120800. Its totient is φ = 7906289376.

The previous prime is 23890745651. The next prime is 23890745653. The reversal of 23890745652 is 25654709832.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (23890745651) and next prime (23890745653).

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 23890745595 and 23890745604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23890745651) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 7159827 + ... + 7163162.

It is an arithmetic number, because the mean of its divisors is an integer number (2339421700).

Almost surely, 2^23890745652 is an apocalyptic number.

It is an amenable number.

23890745652 is an abundant number, since it is smaller than the sum of its proper divisors (32255375148).

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

23890745652 is a wasteful number, since it uses less digits than its factorization.

23890745652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14323135 (or 14323133 counting only the distinct ones).

The product of its (nonzero) digits is 3628800, while the sum is 51.

The spelling of 23890745652 in words is "twenty-three billion, eight hundred ninety million, seven hundred forty-five thousand, six hundred fifty-two".