21834003457 has 8 divisors (see below), whose sum is σ = 25057555200. Its totient is φ = 18636553824.

The previous prime is 21834003413. The next prime is 21834003473. The reversal of 21834003457 is 75430043812.

It is a happy number.

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

It is a de Polignac number, because none of the positive numbers 2^k-21834003457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21834003487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6523732 + ... + 6527077.

It is an arithmetic number, because the mean of its divisors is an integer number (3132194400).

Almost surely, 2^21834003457 is an apocalyptic number.

It is an amenable number.

21834003457 is a deficient number, since it is larger than the sum of its proper divisors (3223551743).

21834003457 is a wasteful number, since it uses less digits than its factorization.

21834003457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13051055.

The product of its (nonzero) digits is 80640, while the sum is 37.

The spelling of 21834003457 in words is "twenty-one billion, eight hundred thirty-four million, three thousand, four hundred fifty-seven".