1189870819344 has 45 divisors (see below), whose sum is σ = 3330022329309. Its totient is φ = 396619243200.

The previous prime is 1189870819273. The next prime is 1189870819381. The reversal of 1189870819344 is 4439180789811.

The square root of 1189870819344 is 1090812.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 157777372944 + 1032093446400 = 397212^2 + 1015920^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 13044294 + ... + 13135194.

Almost surely, 2^{1189870819344} is an apocalyptic number.

1189870819344 is the 1090812-nd square number.

It is an amenable number.

1189870819344 is an abundant number, since it is smaller than the sum of its proper divisors (2140151509965).

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

1189870819344 is an frugal number, since it uses more digits than its factorization.

1189870819344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181816 (or 90906 counting only the distinct ones).

The product of its (nonzero) digits is 13934592, while the sum is 63.

The spelling of 1189870819344 in words is "one trillion, one hundred eighty-nine billion, eight hundred seventy million, eight hundred nineteen thousand, three hundred forty-four".