7247440266613 has 8 divisors (see below), whose sum is σ = 7254420175800. Its totient is φ = 7240460733888.

The previous prime is 7247440266571. The next prime is 7247440266617. The reversal of 7247440266613 is 3166620447427.

It can be written as a sum of positive squares in 4 ways, for example, as 1216648708324 + 6030791558289 = 1103018^2 + 2455767^2 .

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-7247440266613 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7247440266617) 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, 52428495 + ... + 52566547.

It is an arithmetic number, because the mean of its divisors is an integer number (906802521975).

Almost surely, 2^{7247440266613} is an apocalyptic number.

It is an amenable number.

7247440266613 is a deficient number, since it is larger than the sum of its proper divisors (6979909187).

7247440266613 is a wasteful number, since it uses less digits than its factorization.

7247440266613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188231.

The product of its (nonzero) digits is 8128512, while the sum is 52.

The spelling of 7247440266613 in words is "seven trillion, two hundred forty-seven billion, four hundred forty million, two hundred sixty-six thousand, six hundred thirteen".