23236853981187 has 144 divisors (see below), whose sum is σ = 40283707511040. Its totient is φ = 11662072329600.

The previous prime is 23236853981171. The next prime is 23236853981191. The reversal of 23236853981187 is 78118935863232.

It is not a de Polignac number, because 23236853981187 - 2⁴ = 23236853981171 is a prime.

It is a super-2 number, since 2×23236853981187² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23236853981087) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 1511529033 + ... + 1511544405.

Almost surely, 2^{23236853981187} is an apocalyptic number.

23236853981187 is a deficient number, since it is larger than the sum of its proper divisors (17046853529853).

23236853981187 is a wasteful number, since it uses less digits than its factorization.

23236853981187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16086 (or 16044 counting only the distinct ones).

The product of its digits is 104509440, while the sum is 66.

The spelling of 23236853981187 in words is "twenty-three trillion, two hundred thirty-six billion, eight hundred fifty-three million, nine hundred eighty-one thousand, one hundred eighty-seven".