21307580467233 has 16 divisors (see below), whose sum is σ = 28591311329280. Its totient is φ = 14114517599696.

The previous prime is 21307580467223. The next prime is 21307580467237. The reversal of 21307580467233 is 33276408570312.

It is a cyclic number.

It is not a de Polignac number, because 21307580467233 - 2⁴⁰ = 20208068839457 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21307580467237) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6953385 + ... + 9537542.

It is an arithmetic number, because the mean of its divisors is an integer number (1786956958080).

Almost surely, 2^{21307580467233} is an apocalyptic number.

It is an amenable number.

21307580467233 is a deficient number, since it is larger than the sum of its proper divisors (7283730862047).

21307580467233 is a wasteful number, since it uses less digits than its factorization.

21307580467233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16493676.

The product of its (nonzero) digits is 5080320, while the sum is 51.

The spelling of 21307580467233 in words is "twenty-one trillion, three hundred seven billion, five hundred eighty million, four hundred sixty-seven thousand, two hundred thirty-three".