8492215820 has 24 divisors (see below), whose sum is σ = 19454894928. Its totient is φ = 3088078400.

The previous prime is 8492215789. The next prime is 8492215843. The reversal of 8492215820 is 285122948.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19300271 + ... + 19300710.

It is an arithmetic number, because the mean of its divisors is an integer number (810620622).

Almost surely, 2^8492215820 is an apocalyptic number.

It is an amenable number.

8492215820 is an abundant number, since it is smaller than the sum of its proper divisors (10962679108).

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

8492215820 is a wasteful number, since it uses less digits than its factorization.

8492215820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38601001 (or 38600999 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 41.

The square root of 8492215820 is about 92153.2192600996. The cubic root of 8492215820 is about 2040.2043736678.

The spelling of 8492215820 in words is "eight billion, four hundred ninety-two million, two hundred fifteen thousand, eight hundred twenty".