23375288644 has 24 divisors (see below), whose sum is σ = 42437286360. Its totient is φ = 11252634624.

The previous prime is 23375288627. The next prime is 23375288681. The reversal of 23375288644 is 44688257332.

It can be written as a sum of positive squares in 4 ways, for example, as 8975288644 + 14400000000 = 94738^2 + 120000^2 .

It is a hoax number, since the sum of its digits (52) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 23375288591 and 23375288600.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 244479 + ... + 326374.

It is an arithmetic number, because the mean of its divisors is an integer number (1768220265).

Almost surely, 2^23375288644 is an apocalyptic number.

It is an amenable number.

23375288644 is a deficient number, since it is larger than the sum of its proper divisors (19061997716).

23375288644 is a wasteful number, since it uses less digits than its factorization.

23375288644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 571239 (or 571237 counting only the distinct ones).

The product of its digits is 7741440, while the sum is 52.

The spelling of 23375288644 in words is "twenty-three billion, three hundred seventy-five million, two hundred eighty-eight thousand, six hundred forty-four".