6387901385 has 48 divisors (see below), whose sum is σ = 8551595520. Its totient is φ = 4573777920.

The previous prime is 6387901379. The next prime is 6387901409. The reversal of 6387901385 is 5831097836.

It is a happy number.

It is not a de Polignac number, because 6387901385 - 2⁸ = 6387901129 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2641697 + ... + 2644113.

It is an arithmetic number, because the mean of its divisors is an integer number (178158240).

Almost surely, 2^6387901385 is an apocalyptic number.

It is an amenable number.

6387901385 is a deficient number, since it is larger than the sum of its proper divisors (2163694135).

6387901385 is a wasteful number, since it uses less digits than its factorization.

6387901385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2546 (or 2529 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 50.

The square root of 6387901385 is about 79924.3478859853. The cubic root of 6387901385 is about 1855.4648621966.

The spelling of 6387901385 in words is "six billion, three hundred eighty-seven million, nine hundred one thousand, three hundred eighty-five".