6281210982613 has 12 divisors (see below), whose sum is σ = 7322988149100. Its totient is φ = 5371904251392.

The previous prime is 6281210982583. The next prime is 6281210982619. The reversal of 6281210982613 is 3162890121826.

It can be written as a sum of positive squares in 2 ways, for example, as 1212868297809 + 5068342684804 = 1101303^2 + 2251298^2 .

It is not a de Polignac number, because 6281210982613 - 2³⁷ = 6143772029141 is a prime.

It is a super-2 number, since 2×6281210982613² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6281210982619) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 142726306 + ... + 142770307.

It is an arithmetic number, because the mean of its divisors is an integer number (610249012425).

Almost surely, 2^{6281210982613} is an apocalyptic number.

It is an amenable number.

6281210982613 is a deficient number, since it is larger than the sum of its proper divisors (1041777166487).

6281210982613 is a wasteful number, since it uses less digits than its factorization.

6281210982613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285497076 (or 285497069 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 49.

The spelling of 6281210982613 in words is "six trillion, two hundred eighty-one billion, two hundred ten million, nine hundred eighty-two thousand, six hundred thirteen".