6381020258817 has 8 divisors (see below), whose sum is σ = 8521258782624. Its totient is φ = 4247397620448.

The previous prime is 6381020258783. The next prime is 6381020258827. The reversal of 6381020258817 is 7188520201836.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-6381020258817 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6381020258817.

It is not an unprimeable number, because it can be changed into a prime (6381020258827) 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, 1653969108 + ... + 1653972965.

It is an arithmetic number, because the mean of its divisors is an integer number (1065157347828).

Almost surely, 2^{6381020258817} is an apocalyptic number.

It is an amenable number.

6381020258817 is a deficient number, since it is larger than the sum of its proper divisors (2140238523807).

6381020258817 is a wasteful number, since it uses less digits than its factorization.

6381020258817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3307942719.

The product of its (nonzero) digits is 1290240, while the sum is 51.

The spelling of 6381020258817 in words is "six trillion, three hundred eighty-one billion, twenty million, two hundred fifty-eight thousand, eight hundred seventeen".