23687463651 has 4 divisors (see below), whose sum is σ = 31583284872. Its totient is φ = 15791642432.

The previous prime is 23687463649. The next prime is 23687463673. The reversal of 23687463651 is 15636478632.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23687463651 - 2¹ = 23687463649 is a prime.

It is a super-2 number, since 2×23687463651² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23687463594 and 23687463603.

It is not an unprimeable number, because it can be changed into a prime (23687462651) 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, 3947910606 + ... + 3947910611.

It is an arithmetic number, because the mean of its divisors is an integer number (7895821218).

Almost surely, 2^23687463651 is an apocalyptic number.

23687463651 is a deficient number, since it is larger than the sum of its proper divisors (7895821221).

23687463651 is an equidigital number, since it uses as much as digits as its factorization.

23687463651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7895821220.

The product of its digits is 4354560, while the sum is 51.

The spelling of 23687463651 in words is "twenty-three billion, six hundred eighty-seven million, four hundred sixty-three thousand, six hundred fifty-one".