23678450644 has 12 divisors (see below), whose sum is σ = 41441599584. Its totient is φ = 11837993624.

The previous prime is 23678450641. The next prime is 23678450687. The reversal of 23678450644 is 44605487632.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23678450641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 263974 + ... + 342109.

It is an arithmetic number, because the mean of its divisors is an integer number (3453466632).

Almost surely, 2^23678450644 is an apocalyptic number.

It is an amenable number.

23678450644 is a deficient number, since it is larger than the sum of its proper divisors (17763148940).

23678450644 is a wasteful number, since it uses less digits than its factorization.

23678450644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 615854 (or 615852 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 49.

The spelling of 23678450644 in words is "twenty-three billion, six hundred seventy-eight million, four hundred fifty thousand, six hundred forty-four".