9834373890 has 128 divisors (see below), whose sum is σ = 28651449600. Its totient is φ = 2380561920.

The previous prime is 9834373847. The next prime is 9834373931. The reversal of 9834373890 is 983734389.

9834373890 is a `hidden beast` number, since 98 + 3 + 437 + 38 + 90 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

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, 2400684 + ... + 2404776.

It is an arithmetic number, because the mean of its divisors is an integer number (223839450).

Almost surely, 2^9834373890 is an apocalyptic number.

9834373890 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 9834373890, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14325724800).

9834373890 is an abundant number, since it is smaller than the sum of its proper divisors (18817075710).

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

9834373890 is a wasteful number, since it uses less digits than its factorization.

9834373890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4929 (or 4923 counting only the distinct ones).

The product of its (nonzero) digits is 3919104, while the sum is 54.

The square root of 9834373890 is about 99168.4117549535. The cubic root of 9834373890 is about 2142.4740572901.

The spelling of 9834373890 in words is "nine billion, eight hundred thirty-four million, three hundred seventy-three thousand, eight hundred ninety".