23533400836 has 81 divisors (see below), whose sum is σ = 47906203527. Its totient is φ = 10106387280.

The previous prime is 23533400833. The next prime is 23533400851. The reversal of 23533400836 is 63800433532.

The square root of 23533400836 is 153406.

It is a perfect power (a square), and thus also a powerful number.

It is a junction number, because it is equal to n+sod(n) for n = 23533400795 and 23533400804.

It is not an unprimeable number, because it can be changed into a prime (23533400833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 64123525 + ... + 64123891.

Almost surely, 2^23533400836 is an apocalyptic number.

23533400836 is the 153406-th square number.

It is an amenable number.

23533400836 is an abundant number, since it is smaller than the sum of its proper divisors (24372802691).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23533400836 is a wasteful number, since it uses less digits than its factorization.

23533400836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 798 (or 399 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 37.

The spelling of 23533400836 in words is "twenty-three billion, five hundred thirty-three million, four hundred thousand, eight hundred thirty-six".