6247284425845 has 4 divisors (see below), whose sum is σ = 7496741311020. Its totient is φ = 4997827540672.

The previous prime is 6247284425843. The next prime is 6247284425849. The reversal of 6247284425845 is 5485244827426.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3748185056529 + 2499099369316 = 1936023^2 + 1580854^2 .

It is a cyclic number.

It is not a de Polignac number, because 6247284425845 - 2¹ = 6247284425843 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6247284425843) 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 3 ways as a sum of consecutive naturals, for example, 624728442580 + ... + 624728442589.

It is an arithmetic number, because the mean of its divisors is an integer number (1874185327755).

Almost surely, 2^{6247284425845} is an apocalyptic number.

It is an amenable number.

6247284425845 is a deficient number, since it is larger than the sum of its proper divisors (1249456885175).

6247284425845 is a wasteful number, since it uses less digits than its factorization.

6247284425845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1249456885174.

The product of its digits is 137625600, while the sum is 61.

The spelling of 6247284425845 in words is "six trillion, two hundred forty-seven billion, two hundred eighty-four million, four hundred twenty-five thousand, eight hundred forty-five".