23981069687 has 2 divisors, whose sum is σ = 23981069688. Its totient is φ = 23981069686.

The previous prime is 23981069677. The next prime is 23981069711. The reversal of 23981069687 is 78696018932.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23981069687 - 2¹⁰ = 23981068663 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23981069647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11990534843 + 11990534844.

It is an arithmetic number, because the mean of its divisors is an integer number (11990534844).

Almost surely, 2^23981069687 is an apocalyptic number.

23981069687 is a deficient number, since it is larger than the sum of its proper divisors (1).

23981069687 is an equidigital number, since it uses as much as digits as its factorization.

23981069687 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7838208, while the sum is 59.

The spelling of 23981069687 in words is "twenty-three billion, nine hundred eighty-one million, sixty-nine thousand, six hundred eighty-seven".