21347004016801 has 8 divisors (see below), whose sum is σ = 21749840247680. Its totient is φ = 20947483310832.

The previous prime is 21347004016787. The next prime is 21347004016847. The reversal of 21347004016801 is 10861040074312.

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-21347004016801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21347004016001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 828868230 + ... + 828893983.

It is an arithmetic number, because the mean of its divisors is an integer number (2718730030960).

Almost surely, 2^{21347004016801} is an apocalyptic number.

It is an amenable number.

21347004016801 is a deficient number, since it is larger than the sum of its proper divisors (402836230879).

21347004016801 is a wasteful number, since it uses less digits than its factorization.

21347004016801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1657762455.

The product of its (nonzero) digits is 32256, while the sum is 37.

The spelling of 21347004016801 in words is "twenty-one trillion, three hundred forty-seven billion, four million, sixteen thousand, eight hundred one".