6385904244135 has 64 divisors (see below), whose sum is σ = 12260640470400. Its totient is φ = 3134923444224.

The previous prime is 6385904244059. The next prime is 6385904244143. The reversal of 6385904244135 is 5314424095836.

It is a happy number.

6385904244135 is a `hidden beast` number, since 6 + 3 + 8 + 590 + 4 + 2 + 4 + 41 + 3 + 5 = 666.

It is not a de Polignac number, because 6385904244135 - 2⁸ = 6385904243879 is a prime.

It is a super-2 number, since 2×6385904244135² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4534440 + ... + 5773469.

It is an arithmetic number, because the mean of its divisors is an integer number (191572507350).

Almost surely, 2^{6385904244135} is an apocalyptic number.

6385904244135 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

6385904244135 is a deficient number, since it is larger than the sum of its proper divisors (5874736226265).

6385904244135 is a wasteful number, since it uses less digits than its factorization.

6385904244135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10308289 (or 10308283 counting only the distinct ones).

The product of its (nonzero) digits is 12441600, while the sum is 54.

The spelling of 6385904244135 in words is "six trillion, three hundred eighty-five billion, nine hundred four million, two hundred forty-four thousand, one hundred thirty-five".