23686590732849 has 96 divisors (see below), whose sum is σ = 38032444369920. Its totient is φ = 14086379520000.

The previous prime is 23686590732811. The next prime is 23686590732859. The reversal of 23686590732849 is 94823709568632.

It is a happy number.

23686590732849 is a `hidden beast` number, since 2 + 3 + 6 + 8 + 6 + 590 + 7 + 3 + 28 + 4 + 9 = 666.

It is not a de Polignac number, because 23686590732849 - 2⁸ = 23686590732593 is a prime.

It is a super-2 number, since 2×23686590732849² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23686590732859) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 464408349 + ... + 464459349.

It is an arithmetic number, because the mean of its divisors is an integer number (396171295520).

Almost surely, 2^{23686590732849} is an apocalyptic number.

It is an amenable number.

23686590732849 is a deficient number, since it is larger than the sum of its proper divisors (14345853637071).

23686590732849 is a wasteful number, since it uses less digits than its factorization.

23686590732849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51543 (or 51540 counting only the distinct ones).

The product of its (nonzero) digits is 940584960, while the sum is 72.

The spelling of 23686590732849 in words is "twenty-three trillion, six hundred eighty-six billion, five hundred ninety million, seven hundred thirty-two thousand, eight hundred forty-nine".