21483581430 has 16 divisors (see below), whose sum is σ = 51560595504. Its totient is φ = 5728955040.

The previous prime is 21483581417. The next prime is 21483581443. The reversal of 21483581430 is 3418538412.

It is an interprime number because it is at equal distance from previous prime (21483581417) and next prime (21483581443).

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 7 ways as a sum of consecutive naturals, for example, 358059661 + ... + 358059720.

It is an arithmetic number, because the mean of its divisors is an integer number (3222537219).

Almost surely, 2^21483581430 is an apocalyptic number.

21483581430 is an abundant number, since it is smaller than the sum of its proper divisors (30077014074).

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

21483581430 is a wasteful number, since it uses less digits than its factorization.

21483581430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 716119391.

The product of its (nonzero) digits is 92160, while the sum is 39.

The spelling of 21483581430 in words is "twenty-one billion, four hundred eighty-three million, five hundred eighty-one thousand, four hundred thirty".