21467400748 has 24 divisors (see below), whose sum is σ = 37871421840. Its totient is φ = 10647130560.

The previous prime is 21467400739. The next prime is 21467400749. The reversal of 21467400748 is 84700476412.

It is not an unprimeable number, because it can be changed into a prime (21467400749) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 640290 + ... + 672982.

It is an arithmetic number, because the mean of its divisors is an integer number (1577975910).

Almost surely, 2^21467400748 is an apocalyptic number.

It is an amenable number.

21467400748 is a deficient number, since it is larger than the sum of its proper divisors (16404021092).

21467400748 is a wasteful number, since it uses less digits than its factorization.

21467400748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34017 (or 34015 counting only the distinct ones).

The product of its (nonzero) digits is 301056, while the sum is 43.

The spelling of 21467400748 in words is "twenty-one billion, four hundred sixty-seven million, four hundred thousand, seven hundred forty-eight".