1009128930940 has 24 divisors (see below), whose sum is σ = 2282183890560. Its totient is φ = 372601451328.

The previous prime is 1009128930923. The next prime is 1009128930959. The reversal of 1009128930940 is 490398219001.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1940632300 + ... + 1940632819.

It is an arithmetic number, because the mean of its divisors is an integer number (95090995440).

Almost surely, 2^{1009128930940} is an apocalyptic number.

1009128930940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1009128930940 is an abundant number, since it is smaller than the sum of its proper divisors (1273054959620).

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

1009128930940 is a wasteful number, since it uses less digits than its factorization.

1009128930940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3881265141 (or 3881265139 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 46.

The spelling of 1009128930940 in words is "one trillion, nine billion, one hundred twenty-eight million, nine hundred thirty thousand, nine hundred forty".