6387668118920 has 32 divisors (see below), whose sum is σ = 15678821747520. Its totient is φ = 2322788406720.

The previous prime is 6387668118917. The next prime is 6387668118941. The reversal of 6387668118920 is 298118667836.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7258713332 + ... + 7258714211.

It is an arithmetic number, because the mean of its divisors is an integer number (489963179610).

Almost surely, 2^{6387668118920} is an apocalyptic number.

It is an amenable number.

6387668118920 is an abundant number, since it is smaller than the sum of its proper divisors (9291153628600).

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

6387668118920 is a wasteful number, since it uses less digits than its factorization.

6387668118920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14517427565 (or 14517427561 counting only the distinct ones).

The product of its (nonzero) digits is 41803776, while the sum is 65.

The spelling of 6387668118920 in words is "six trillion, three hundred eighty-seven billion, six hundred sixty-eight million, one hundred eighteen thousand, nine hundred twenty".