9540398736 has 120 divisors (see below), whose sum is σ = 29158758720. Its totient is φ = 2887891200.

The previous prime is 9540398687. The next prime is 9540398783. The reversal of 9540398736 is 6378930459.

9540398736 is a `hidden beast` number, since 9 + 540 + 3 + 98 + 7 + 3 + 6 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1753941 + ... + 1759371.

It is an arithmetic number, because the mean of its divisors is an integer number (242989656).

Almost surely, 2^9540398736 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9540398736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14579379360).

9540398736 is an abundant number, since it is smaller than the sum of its proper divisors (19618359984).

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

9540398736 is a wasteful number, since it uses less digits than its factorization.

9540398736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6565 (or 6556 counting only the distinct ones).

The product of its (nonzero) digits is 4898880, while the sum is 54.

The square root of 9540398736 is about 97674.9647350845. The cubic root of 9540398736 is about 2120.9096855472.

The spelling of 9540398736 in words is "nine billion, five hundred forty million, three hundred ninety-eight thousand, seven hundred thirty-six".