21369012468232 has 64 divisors (see below), whose sum is σ = 47600495510400. Its totient is φ = 8865277386240.

The previous prime is 21369012468197. The next prime is 21369012468253. The reversal of 21369012468232 is 23286421096312.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 104837548 + ... + 105041179.

It is an arithmetic number, because the mean of its divisors is an integer number (743757742350).

Almost surely, 2^{21369012468232} is an apocalyptic number.

21369012468232 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21369012468232 is an abundant number, since it is smaller than the sum of its proper divisors (26231483042168).

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

21369012468232 is a wasteful number, since it uses less digits than its factorization.

21369012468232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209878846 (or 209878842 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 49.

The spelling of 21369012468232 in words is "twenty-one trillion, three hundred sixty-nine billion, twelve million, four hundred sixty-eight thousand, two hundred thirty-two".