21898232310 has 32 divisors (see below), whose sum is σ = 52560179712. Its totient is φ = 5839037280.

The previous prime is 21898232309. The next prime is 21898232347. The reversal of 21898232310 is 1323289812.

It is a super-3 number, since 3×21898232310³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 460677 + ... + 505983.

It is an arithmetic number, because the mean of its divisors is an integer number (1642505616).

Almost surely, 2^21898232310 is an apocalyptic number.

21898232310 is an abundant number, since it is smaller than the sum of its proper divisors (30661947402).

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

21898232310 is a wasteful number, since it uses less digits than its factorization.

21898232310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61428.

The product of its (nonzero) digits is 41472, while the sum is 39.

The spelling of 21898232310 in words is "twenty-one billion, eight hundred ninety-eight million, two hundred thirty-two thousand, three hundred ten".