1189089813238 has 4 divisors (see below), whose sum is σ = 1783634719860. Its totient is φ = 594544906618.

The previous prime is 1189089813193. The next prime is 1189089813271. The reversal of 1189089813238 is 8323189809811.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 297272453308 + ... + 297272453311.

It is an arithmetic number, because the mean of its divisors is an integer number (445908679965).

Almost surely, 2^{1189089813238} is an apocalyptic number.

1189089813238 is a deficient number, since it is larger than the sum of its proper divisors (594544906622).

1189089813238 is an equidigital number, since it uses as much as digits as its factorization.

1189089813238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 594544906621.

The product of its (nonzero) digits is 5971968, while the sum is 61.

The spelling of 1189089813238 in words is "one trillion, one hundred eighty-nine billion, eighty-nine million, eight hundred thirteen thousand, two hundred thirty-eight".