1009309332540 has 48 divisors (see below), whose sum is σ = 2826110633472. Its totient is φ = 269144917056.

The previous prime is 1009309332509. The next prime is 1009309332541. The reversal of 1009309332540 is 452339039001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1009309332541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6256777 + ... + 6416063.

It is an arithmetic number, because the mean of its divisors is an integer number (58877304864).

Almost surely, 2^{1009309332540} is an apocalyptic number.

1009309332540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1009309332540 is an abundant number, since it is smaller than the sum of its proper divisors (1816801300932).

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

1009309332540 is a wasteful number, since it uses less digits than its factorization.

1009309332540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264906 (or 264904 counting only the distinct ones).

The product of its (nonzero) digits is 87480, while the sum is 39.

The spelling of 1009309332540 in words is "one trillion, nine billion, three hundred nine million, three hundred thirty-two thousand, five hundred forty".