9132781000 has 128 divisors (see below), whose sum is σ = 24515861760. Its totient is φ = 3119424000.

The previous prime is 9132780991. The next prime is 9132781039. The reversal of 9132781000 is 1872319.

It is a super-2 number, since 2×9132781000² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1964679 + ... + 1969321.

It is an arithmetic number, because the mean of its divisors is an integer number (191530170).

Almost surely, 2^9132781000 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 9132781000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12257930880).

9132781000 is an abundant number, since it is smaller than the sum of its proper divisors (15383080760).

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

9132781000 is a wasteful number, since it uses less digits than its factorization.

9132781000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4952 (or 4938 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 31.

The square root of 9132781000 is about 95565.5848095956. The cubic root of 9132781000 is about 2090.2633917874.

The spelling of 9132781000 in words is "nine billion, one hundred thirty-two million, seven hundred eighty-one thousand".