1186946243880 has 64 divisors (see below), whose sum is σ = 3564266284800. Its totient is φ = 316214327040.

The previous prime is 1186946243869. The next prime is 1186946244037. The reversal of 1186946243880 is 883426496811.

It is a happy number.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4635291 + ... + 4884650.

It is an arithmetic number, because the mean of its divisors is an integer number (55691660700).

Almost surely, 2^{1186946243880} is an apocalyptic number.

1186946243880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1186946243880 is an abundant number, since it is smaller than the sum of its proper divisors (2377320040920).

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

1186946243880 is a wasteful number, since it uses less digits than its factorization.

1186946243880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9520994 (or 9520990 counting only the distinct ones).

The product of its (nonzero) digits is 15925248, while the sum is 60.

The spelling of 1186946243880 in words is "one trillion, one hundred eighty-six billion, nine hundred forty-six million, two hundred forty-three thousand, eight hundred eighty".