1189728617392 has 20 divisors (see below), whose sum is σ = 2634399081616. Its totient is φ = 509883693120.

The previous prime is 1189728617377. The next prime is 1189728617417. The reversal of 1189728617392 is 2937168279811.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5311288359 + ... + 5311288582.

Almost surely, 2^{1189728617392} is an apocalyptic number.

It is an amenable number.

1189728617392 is an abundant number, since it is smaller than the sum of its proper divisors (1444670464224).

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

1189728617392 is a wasteful number, since it uses less digits than its factorization.

1189728617392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10622576956 (or 10622576950 counting only the distinct ones).

The product of its digits is 18289152, while the sum is 64.

The spelling of 1189728617392 in words is "one trillion, one hundred eighty-nine billion, seven hundred twenty-eight million, six hundred seventeen thousand, three hundred ninety-two".