73868633863533 has 32 divisors (see below), whose sum is σ = 110949998140800. Its totient is φ = 48564205734528.

The previous prime is 73868633863517. The next prime is 73868633863573. The reversal of 73868633863533 is 33536833686837.

73868633863533 is a `hidden beast` number, since 7 + 3 + 8 + 6 + 8 + 6 + 3 + 3 + 86 + 3 + 533 = 666.

It is not a de Polignac number, because 73868633863533 - 2⁴ = 73868633863517 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73868633863513) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11112958 + ... + 16469216.

It is an arithmetic number, because the mean of its divisors is an integer number (3467187441900).

Almost surely, 2^{73868633863533} is an apocalyptic number.

73868633863533 is a gapful number since it is divisible by the number (73) formed by its first and last digit.

It is an amenable number.

73868633863533 is a deficient number, since it is larger than the sum of its proper divisors (37081364277267).

73868633863533 is a wasteful number, since it uses less digits than its factorization.

73868633863533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5363338 (or 5363332 counting only the distinct ones).

The product of its digits is 2821754880, while the sum is 72.

It can be divided in two parts, 7386863 and 3863533, that added together give a triangular number (11250396 = T₄₇₄₃).

The spelling of 73868633863533 in words is "seventy-three trillion, eight hundred sixty-eight billion, six hundred thirty-three million, eight hundred sixty-three thousand, five hundred thirty-three".