23281781692 has 24 divisors (see below), whose sum is σ = 43898022000. Its totient is φ = 10740339456.

The previous prime is 23281781687. The next prime is 23281781723. The reversal of 23281781692 is 29618718232.

It is a congruent number.

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, 5559 + ... + 215857.

It is an arithmetic number, because the mean of its divisors is an integer number (1829084250).

Almost surely, 2^23281781692 is an apocalyptic number.

It is an amenable number.

23281781692 is a deficient number, since it is larger than the sum of its proper divisors (20616240308).

23281781692 is a wasteful number, since it uses less digits than its factorization.

23281781692 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212445 (or 212443 counting only the distinct ones).

The product of its digits is 580608, while the sum is 49.

The spelling of 23281781692 in words is "twenty-three billion, two hundred eighty-one million, seven hundred eighty-one thousand, six hundred ninety-two".