8868815213 has 4 divisors (see below), whose sum is σ = 8887806720. Its totient is φ = 8849823708.

The previous prime is 8868815209. The next prime is 8868815227. The reversal of 8868815213 is 3125188688.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8868815213 - 2² = 8868815209 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 (8868815413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9495053 + ... + 9495986.

It is an arithmetic number, because the mean of its divisors is an integer number (2221951680).

Almost surely, 2^8868815213 is an apocalyptic number.

It is an amenable number.

8868815213 is a deficient number, since it is larger than the sum of its proper divisors (18991507).

8868815213 is a wasteful number, since it uses less digits than its factorization.

8868815213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18991506.

The product of its digits is 737280, while the sum is 50.

The square root of 8868815213 is about 94174.3872451528. The cubic root of 8868815213 is about 2069.9278225590.

The spelling of 8868815213 in words is "eight billion, eight hundred sixty-eight million, eight hundred fifteen thousand, two hundred thirteen".