21463662625003 has 4 divisors (see below), whose sum is σ = 21473512862440. Its totient is φ = 21453812387568.

The previous prime is 21463662624967. The next prime is 21463662625033. The reversal of 21463662625003 is 30052626636412.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 21463662625003 - 2³⁷ = 21326223671531 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21463662625033) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 4925115450 + ... + 4925119807.

It is an arithmetic number, because the mean of its divisors is an integer number (5368378215610).

Almost surely, 2^{21463662625003} is an apocalyptic number.

21463662625003 is a deficient number, since it is larger than the sum of its proper divisors (9850237437).

21463662625003 is an equidigital number, since it uses as much as digits as its factorization.

21463662625003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9850237436.

The product of its (nonzero) digits is 1866240, while the sum is 46.

The spelling of 21463662625003 in words is "twenty-one trillion, four hundred sixty-three billion, six hundred sixty-two million, six hundred twenty-five thousand, three".