1380786458742 has 48 divisors (see below), whose sum is σ = 3104395227648. Its totient is φ = 443226556080.

The previous prime is 1380786458731. The next prime is 1380786458827. The reversal of 1380786458742 is 2478546870831.

It is a happy number.

1380786458742 is a `hidden beast` number, since 1 + 3 + 8 + 0 + 7 + 8 + 6 + 4 + 587 + 42 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 1380786458742.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12508158 + ... + 12618065.

It is an arithmetic number, because the mean of its divisors is an integer number (64674900576).

Almost surely, 2^{1380786458742} is an apocalyptic number.

1380786458742 is an abundant number, since it is smaller than the sum of its proper divisors (1723608768906).

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

1380786458742 is a wasteful number, since it uses less digits than its factorization.

1380786458742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25126345 (or 25126342 counting only the distinct ones).

The product of its (nonzero) digits is 72253440, while the sum is 63.

The spelling of 1380786458742 in words is "one trillion, three hundred eighty billion, seven hundred eighty-six million, four hundred fifty-eight thousand, seven hundred forty-two".