8499942894 has 24 divisors (see below), whose sum is σ = 17046486072. Its totient is φ = 2825555520.

The previous prime is 8499942889. The next prime is 8499942959. The reversal of 8499942894 is 4982499948.

It is a super-2 number, since 2×8499942894² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4847922 + ... + 4849674.

It is an arithmetic number, because the mean of its divisors is an integer number (710270253).

Almost surely, 2^8499942894 is an apocalyptic number.

8499942894 is an abundant number, since it is smaller than the sum of its proper divisors (8546543178).

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

8499942894 is an equidigital number, since it uses as much as digits as its factorization.

8499942894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3972 (or 2219 counting only the distinct ones).

The product of its digits is 53747712, while the sum is 66.

The square root of 8499942894 is about 92195.1348716406. The cubic root of 8499942894 is about 2040.8229806152.

The spelling of 8499942894 in words is "eight billion, four hundred ninety-nine million, nine hundred forty-two thousand, eight hundred ninety-four".