1189380738840 has 64 divisors (see below), whose sum is σ = 4077876821760. Its totient is φ = 271858454400.

The previous prime is 1189380738823. The next prime is 1189380738853. The reversal of 1189380738840 is 488370839811.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 707963886 + ... + 707965565.

It is an arithmetic number, because the mean of its divisors is an integer number (63716825340).

Almost surely, 2^{1189380738840} is an apocalyptic number.

1189380738840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1189380738840 is an abundant number, since it is smaller than the sum of its proper divisors (2888496082920).

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

1189380738840 is a wasteful number, since it uses less digits than its factorization.

1189380738840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1415929472 (or 1415929468 counting only the distinct ones).

The product of its (nonzero) digits is 9289728, while the sum is 60.

The spelling of 1189380738840 in words is "one trillion, one hundred eighty-nine billion, three hundred eighty million, seven hundred thirty-eight thousand, eight hundred forty".