8265999010021 has 8 divisors (see below), whose sum is σ = 8340617476800. Its totient is φ = 8191406298432.

The previous prime is 8265999010007. The next prime is 8265999010037. The reversal of 8265999010021 is 1200109995628.

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 8265999010021 - 2¹³ = 8265999001829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8265999010091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5793721 + ... + 7078078.

It is an arithmetic number, because the mean of its divisors is an integer number (1042577184600).

Almost surely, 2^{8265999010021} is an apocalyptic number.

It is an amenable number.

8265999010021 is a deficient number, since it is larger than the sum of its proper divisors (74618466779).

8265999010021 is a wasteful number, since it uses less digits than its factorization.

8265999010021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12877595.

The product of its (nonzero) digits is 699840, while the sum is 52.

The spelling of 8265999010021 in words is "eight trillion, two hundred sixty-five billion, nine hundred ninety-nine million, ten thousand, twenty-one".