1189877958144 has 120 divisors (see below), whose sum is σ = 3437406467352. Its totient is φ = 396240445440.

The previous prime is 1189877958097. The next prime is 1189877958163. The reversal of 1189877958144 is 4418597789811.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4635079 + ... + 4885049.

Almost surely, 2^{1189877958144} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1189877958144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1718703233676).

1189877958144 is an abundant number, since it is smaller than the sum of its proper divisors (2247528509208).

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

1189877958144 is a wasteful number, since it uses less digits than its factorization.

1189877958144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251028 (or 251009 counting only the distinct ones).

The product of its digits is 162570240, while the sum is 72.

The spelling of 1189877958144 in words is "one trillion, one hundred eighty-nine billion, eight hundred seventy-seven million, nine hundred fifty-eight thousand, one hundred forty-four".