21885000502 has 8 divisors (see below), whose sum is σ = 33047820000. Its totient is φ = 10869060504.

The previous prime is 21885000493. The next prime is 21885000509. The reversal of 21885000502 is 20500058812.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21885000509) 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 3 ways as a sum of consecutive naturals, for example, 36719502 + ... + 36720097.

It is an arithmetic number, because the mean of its divisors is an integer number (4130977500).

Almost surely, 2^21885000502 is an apocalyptic number.

21885000502 is a deficient number, since it is larger than the sum of its proper divisors (11162819498).

21885000502 is a wasteful number, since it uses less digits than its factorization.

21885000502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73439750.

The product of its (nonzero) digits is 6400, while the sum is 31.

The spelling of 21885000502 in words is "twenty-one billion, eight hundred eighty-five million, five hundred two", and thus it is an aban number.