21425141893 has 8 divisors (see below), whose sum is σ = 23162316320. Its totient is φ = 19748921040.

The previous prime is 21425141867. The next prime is 21425141911. The reversal of 21425141893 is 39814152412.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21425141893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21425141593) 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, 15237663 + ... + 15239068.

It is an arithmetic number, because the mean of its divisors is an integer number (2895289540).

Almost surely, 2^21425141893 is an apocalyptic number.

It is an amenable number.

21425141893 is a deficient number, since it is larger than the sum of its proper divisors (1737174427).

21425141893 is a wasteful number, since it uses less digits than its factorization.

21425141893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30476787.

The product of its digits is 69120, while the sum is 40.

The spelling of 21425141893 in words is "twenty-one billion, four hundred twenty-five million, one hundred forty-one thousand, eight hundred ninety-three".