8211315890 has 32 divisors (see below), whose sum is σ = 14936716224. Its totient is φ = 3249858240.

The previous prime is 8211315883. The next prime is 8211315901. The reversal of 8211315890 is 985131128.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 966260 + ... + 974720.

It is an arithmetic number, because the mean of its divisors is an integer number (466772382).

Almost surely, 2^8211315890 is an apocalyptic number.

8211315890 is a deficient number, since it is larger than the sum of its proper divisors (6725400334).

8211315890 is a wasteful number, since it uses less digits than its factorization.

8211315890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9482.

The product of its (nonzero) digits is 17280, while the sum is 38.

The square root of 8211315890 is about 90616.3113903893. The cubic root of 8211315890 is about 2017.4568434891.

The spelling of 8211315890 in words is "eight billion, two hundred eleven million, three hundred fifteen thousand, eight hundred ninety".