21274413622 has 16 divisors (see below), whose sum is σ = 39785916672. Its totient is φ = 8288732520.

The previous prime is 21274413593. The next prime is 21274413623. The reversal of 21274413622 is 22631447212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21274413623) by changing a digit.

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, 69072618 + ... + 69072925.

It is an arithmetic number, because the mean of its divisors is an integer number (2486619792).

Almost surely, 2^21274413622 is an apocalyptic number.

21274413622 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21274413622 is a deficient number, since it is larger than the sum of its proper divisors (18511503050).

21274413622 is a wasteful number, since it uses less digits than its factorization.

21274413622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138145563.

The product of its digits is 32256, while the sum is 34.

The spelling of 21274413622 in words is "twenty-one billion, two hundred seventy-four million, four hundred thirteen thousand, six hundred twenty-two".