21481941006 has 24 divisors (see below), whose sum is σ = 48993901320. Its totient is φ = 6783770736.

The previous prime is 21481941001. The next prime is 21481941043. The reversal of 21481941006 is 60014918412.

It is a super-2 number, since 2×21481941006² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21481941001) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31406005 + ... + 31406688.

It is an arithmetic number, because the mean of its divisors is an integer number (2041412555).

Almost surely, 2^21481941006 is an apocalyptic number.

21481941006 is an abundant number, since it is smaller than the sum of its proper divisors (27511960314).

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

21481941006 is a wasteful number, since it uses less digits than its factorization.

21481941006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62812720 (or 62812717 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The spelling of 21481941006 in words is "twenty-one billion, four hundred eighty-one million, nine hundred forty-one thousand, six".