21463010442500 has 60 divisors (see below), whose sum is σ = 51202157777232. Its totient is φ = 7804731060000.

The previous prime is 21463010442481. The next prime is 21463010442557. The reversal of 21463010442500 is 524401036412.

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 19 ways as a sum of consecutive naturals, for example, 390209054 + ... + 390264053.

Almost surely, 2^{21463010442500} is an apocalyptic number.

21463010442500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21463010442500 is an abundant number, since it is smaller than the sum of its proper divisors (29739147334732).

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

21463010442500 is a wasteful number, since it uses less digits than its factorization.

21463010442500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 780473142 (or 780473125 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 32.

Adding to 21463010442500 its reverse (524401036412), we get a palindrome (21987411478912).

The spelling of 21463010442500 in words is "twenty-one trillion, four hundred sixty-three billion, ten million, four hundred forty-two thousand, five hundred".