23450686647 has 16 divisors (see below), whose sum is σ = 32091537408. Its totient is φ = 15223273920.

The previous prime is 23450686639. The next prime is 23450686657. The reversal of 23450686647 is 74668605432.

It is a happy number.

It is not a de Polignac number, because 23450686647 - 2³ = 23450686639 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23450686647.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23450686657) 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, 117943 + ... + 246600.

It is an arithmetic number, because the mean of its divisors is an integer number (2005721088).

Almost surely, 2^23450686647 is an apocalyptic number.

23450686647 is a deficient number, since it is larger than the sum of its proper divisors (8640850761).

23450686647 is a wasteful number, since it uses less digits than its factorization.

23450686647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365110.

The product of its (nonzero) digits is 5806080, while the sum is 51.

The spelling of 23450686647 in words is "twenty-three billion, four hundred fifty million, six hundred eighty-six thousand, six hundred forty-seven".