21428741482748 has 12 divisors (see below), whose sum is σ = 39473997468360. Its totient is φ = 10150456491792.

The previous prime is 21428741482723. The next prime is 21428741482769. The reversal of 21428741482748 is 84728414782412.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 140978562311 + ... + 140978562462.

It is an arithmetic number, because the mean of its divisors is an integer number (3289499789030).

Almost surely, 2^{21428741482748} is an apocalyptic number.

It is an amenable number.

21428741482748 is a deficient number, since it is larger than the sum of its proper divisors (18045255985612).

21428741482748 is a wasteful number, since it uses less digits than its factorization.

21428741482748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281957124796 (or 281957124794 counting only the distinct ones).

The product of its digits is 51380224, while the sum is 62.

The spelling of 21428741482748 in words is "twenty-one trillion, four hundred twenty-eight billion, seven hundred forty-one million, four hundred eighty-two thousand, seven hundred forty-eight".