9013820894 has 16 divisors (see below), whose sum is σ = 15327145680. Its totient is φ = 3941265600.

The previous prime is 9013820867. The next prime is 9013820923. The reversal of 9013820894 is 4980283109.

It is a happy number.

9013820894 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×9013820894² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent 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, 9122807 + ... + 9123794.

It is an arithmetic number, because the mean of its divisors is an integer number (957946605).

Almost surely, 2^9013820894 is an apocalyptic number.

9013820894 is a deficient number, since it is larger than the sum of its proper divisors (6313324786).

9013820894 is a wasteful number, since it uses less digits than its factorization.

9013820894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18246635.

The product of its (nonzero) digits is 124416, while the sum is 44.

The square root of 9013820894 is about 94941.1443684981. The cubic root of 9013820894 is about 2081.1480421107.

The spelling of 9013820894 in words is "nine billion, thirteen million, eight hundred twenty thousand, eight hundred ninety-four".