23861637945 has 48 divisors (see below), whose sum is σ = 41593294080. Its totient is φ = 12654690048.

The previous prime is 23861637931. The next prime is 23861637949. The reversal of 23861637945 is 54973616832.

It is not a de Polignac number, because 23861637945 - 2⁸ = 23861637689 is a prime.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 23861637891 and 23861637900.

It is not an unprimeable number, because it can be changed into a prime (23861637949) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6519526 + ... + 6523184.

It is an arithmetic number, because the mean of its divisors is an integer number (866526960).

Almost surely, 2^23861637945 is an apocalyptic number.

It is an amenable number.

23861637945 is a deficient number, since it is larger than the sum of its proper divisors (17731656135).

23861637945 is a wasteful number, since it uses less digits than its factorization.

23861637945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4446 (or 4443 counting only the distinct ones).

The product of its digits is 6531840, while the sum is 54.

The spelling of 23861637945 in words is "twenty-three billion, eight hundred sixty-one million, six hundred thirty-seven thousand, nine hundred forty-five".