9378798894 has 32 divisors (see below), whose sum is σ = 20918714880. Its totient is φ = 3114725400.

The previous prime is 9378798893. The next prime is 9378798937. The reversal of 9378798894 is 4988978739.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9378798893) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 305812 + ... + 335079.

It is an arithmetic number, because the mean of its divisors is an integer number (653709840).

Almost surely, 2^9378798894 is an apocalyptic number.

9378798894 is an abundant number, since it is smaller than the sum of its proper divisors (11539915986).

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

9378798894 is a wasteful number, since it uses less digits than its factorization.

9378798894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 641173 (or 641167 counting only the distinct ones).

The product of its digits is 219469824, while the sum is 72.

The square root of 9378798894 is about 96844.1990725309. The cubic root of 9378798894 is about 2108.8664346858.

The spelling of 9378798894 in words is "nine billion, three hundred seventy-eight million, seven hundred ninety-eight thousand, eight hundred ninety-four".