6385617053872 has 40 divisors (see below), whose sum is σ = 14153429629472. Its totient is φ = 2734012569600.

The previous prime is 6385617053839. The next prime is 6385617053873. The reversal of 6385617053872 is 2783507165836.

It is a super-2 number, since 2×6385617053872² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6385617053872.

It is not an unprimeable number, because it can be changed into a prime (6385617053873) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27806529 + ... + 28035232.

Almost surely, 2^{6385617053872} is an apocalyptic number.

It is an amenable number.

6385617053872 is an abundant number, since it is smaller than the sum of its proper divisors (7767812575600).

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

6385617053872 is a wasteful number, since it uses less digits than its factorization.

6385617053872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55842797 (or 55842791 counting only the distinct ones).

The product of its (nonzero) digits is 50803200, while the sum is 61.

The spelling of 6385617053872 in words is "six trillion, three hundred eighty-five billion, six hundred seventeen million, fifty-three thousand, eight hundred seventy-two".