21374263645001 has 8 divisors (see below), whose sum is σ = 21885749518464. Its totient is φ = 20868623324640.

The previous prime is 21374263644997. The next prime is 21374263645037. The reversal of 21374263645001 is 10054636247312.

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

It is a cyclic number.

It is not a de Polignac number, because 21374263645001 - 2² = 21374263644997 is a prime.

It is a super-2 number, since 2×21374263645001² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21374263645061) 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, 1461380876 + ... + 1461395501.

It is an arithmetic number, because the mean of its divisors is an integer number (2735718689808).

Almost surely, 2^{21374263645001} is an apocalyptic number.

It is an amenable number.

21374263645001 is a deficient number, since it is larger than the sum of its proper divisors (511485873463).

21374263645001 is a wasteful number, since it uses less digits than its factorization.

21374263645001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2922776551.

The product of its (nonzero) digits is 725760, while the sum is 44.

The spelling of 21374263645001 in words is "twenty-one trillion, three hundred seventy-four billion, two hundred sixty-three million, six hundred forty-five thousand, one".