2868715221 has 16 divisors (see below), whose sum is σ = 3890671680. Its totient is φ = 1879891200.

The previous prime is 2868715219. The next prime is 2868715271. The reversal of 2868715221 is 1225178682.

It is not a de Polignac number, because 2868715221 - 2¹ = 2868715219 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2868715271) 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, 8061 + ... + 76173.

It is an arithmetic number, because the mean of its divisors is an integer number (243166980).

Almost surely, 2^2868715221 is an apocalyptic number.

It is an amenable number.

2868715221 is a deficient number, since it is larger than the sum of its proper divisors (1021956459).

2868715221 is a wasteful number, since it uses less digits than its factorization.

2868715221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68356.

The product of its digits is 107520, while the sum is 42.

The square root of 2868715221 is about 53560.3885441471. The cubic root of 2868715221 is about 1420.8966137004.

The spelling of 2868715221 in words is "two billion, eight hundred sixty-eight million, seven hundred fifteen thousand, two hundred twenty-one".