23787840653 has 8 divisors (see below), whose sum is σ = 24188926080. Its totient is φ = 23389254720.

The previous prime is 23787840623. The next prime is 23787840677. The reversal of 23787840653 is 35604878732.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23787840653 - 2⁶ = 23787840589 is a prime.

It is a super-2 number, since 2×23787840653² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23787840595 and 23787840604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23787840623) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 605675 + ... + 643752.

It is an arithmetic number, because the mean of its divisors is an integer number (3023615760).

Almost surely, 2^23787840653 is an apocalyptic number.

It is an amenable number.

23787840653 is a deficient number, since it is larger than the sum of its proper divisors (401085427).

23787840653 is a wasteful number, since it uses less digits than its factorization.

23787840653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1249747.

The product of its (nonzero) digits is 6773760, while the sum is 53.

The spelling of 23787840653 in words is "twenty-three billion, seven hundred eighty-seven million, eight hundred forty thousand, six hundred fifty-three".