6280020005981 has 8 divisors (see below), whose sum is σ = 6284194818624. Its totient is φ = 6275846314080.

The previous prime is 6280020005953. The next prime is 6280020005989. The reversal of 6280020005981 is 1895000200826.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6280020005981 is a prime.

It is a super-2 number, since 2×6280020005981² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6280020005989) by changing a digit.

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, 11083121 + ... + 11635961.

It is an arithmetic number, because the mean of its divisors is an integer number (785524352328).

Almost surely, 2^{6280020005981} is an apocalyptic number.

It is an amenable number.

6280020005981 is a deficient number, since it is larger than the sum of its proper divisors (4174812643).

6280020005981 is a wasteful number, since it uses less digits than its factorization.

6280020005981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 560371.

The product of its (nonzero) digits is 69120, while the sum is 41.

The spelling of 6280020005981 in words is "six trillion, two hundred eighty billion, twenty million, five thousand, nine hundred eighty-one".