8072213870 has 128 divisors (see below), whose sum is σ = 17871114240. Its totient is φ = 2562508800.

The previous prime is 8072213839. The next prime is 8072213923. The reversal of 8072213870 is 783122708.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 30008096 + ... + 30008364.

It is an arithmetic number, because the mean of its divisors is an integer number (139618080).

Almost surely, 2^8072213870 is an apocalyptic number.

It is a pronic number, being equal to 89845×89846.

8072213870 is an abundant number, since it is smaller than the sum of its proper divisors (9798900370).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8072213870 is a wasteful number, since it uses less digits than its factorization.

8072213870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 618.

The product of its (nonzero) digits is 37632, while the sum is 38.

The square root of 8072213870 is about 89845.4999986087. The cubic root of 8072213870 is about 2005.9998056677. Note that the first 3 decimals are identical.

The spelling of 8072213870 in words is "eight billion, seventy-two million, two hundred thirteen thousand, eight hundred seventy".