1387891466604 has 48 divisors (see below), whose sum is σ = 3599690488800. Its totient is φ = 462443629248.

The previous prime is 1387891466597. The next prime is 1387891466617. The reversal of 1387891466604 is 4066641987831.

It is a happy number.

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, 2326519 + ... + 2861550.

It is an arithmetic number, because the mean of its divisors is an integer number (74993551850).

Almost surely, 2^{1387891466604} is an apocalyptic number.

It is an amenable number.

1387891466604 is an abundant number, since it is smaller than the sum of its proper divisors (2211799022196).

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

1387891466604 is a wasteful number, since it uses less digits than its factorization.

1387891466604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5190559 (or 5190551 counting only the distinct ones).

The product of its (nonzero) digits is 41803776, while the sum is 63.

The spelling of 1387891466604 in words is "one trillion, three hundred eighty-seven billion, eight hundred ninety-one million, four hundred sixty-six thousand, six hundred four".