21463225420404 has 24 divisors (see below), whose sum is σ = 50123626946848. Its totient is φ = 7148298811680.

The previous prime is 21463225420369. The next prime is 21463225420457. The reversal of 21463225420404 is 40402452236412.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 763693087 + ... + 763721190.

Almost surely, 2^{21463225420404} is an apocalyptic number.

It is an amenable number.

21463225420404 is an abundant number, since it is smaller than the sum of its proper divisors (28660401526444).

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

21463225420404 is a wasteful number, since it uses less digits than its factorization.

21463225420404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1527415455 (or 1527415453 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 39.

Adding to 21463225420404 its reverse (40402452236412), we get a palindrome (61865677656816).

The spelling of 21463225420404 in words is "twenty-one trillion, four hundred sixty-three billion, two hundred twenty-five million, four hundred twenty thousand, four hundred four".