21442515510430 has 64 divisors (see below), whose sum is σ = 47018499235200. Its totient is φ = 6872827428864.

The previous prime is 21442515510389. The next prime is 21442515510457. The reversal of 21442515510430 is 3401551524412.

It is a super-2 number, since 2×21442515510430² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 21442515510430.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 60288867 + ... + 60643486.

It is an arithmetic number, because the mean of its divisors is an integer number (734664050550).

Almost surely, 2^{21442515510430} is an apocalyptic number.

21442515510430 is an abundant number, since it is smaller than the sum of its proper divisors (25575983724770).

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

21442515510430 is a wasteful number, since it uses less digits than its factorization.

21442515510430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120932533.

The product of its (nonzero) digits is 96000, while the sum is 37.

The spelling of 21442515510430 in words is "twenty-one trillion, four hundred forty-two billion, five hundred fifteen million, five hundred ten thousand, four hundred thirty".