1188949646740 has 12 divisors (see below), whose sum is σ = 2496794258196. Its totient is φ = 475579858688.

The previous prime is 1188949646681. The next prime is 1188949646761. The reversal of 1188949646740 is 476469498811.

It can be written as a sum of positive squares in 2 ways, for example, as 775248552324 + 413701094416 = 880482^2 + 643196^2 .

It is a congruent number.

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, 29723741149 + ... + 29723741188.

It is an arithmetic number, because the mean of its divisors is an integer number (208066188183).

Almost surely, 2^{1188949646740} is an apocalyptic number.

1188949646740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1188949646740 is an abundant number, since it is smaller than the sum of its proper divisors (1307844611456).

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

1188949646740 is a wasteful number, since it uses less digits than its factorization.

1188949646740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59447482346 (or 59447482344 counting only the distinct ones).

The product of its (nonzero) digits is 83607552, while the sum is 67.

The spelling of 1188949646740 in words is "one trillion, one hundred eighty-eight billion, nine hundred forty-nine million, six hundred forty-six thousand, seven hundred forty".