7421247306243 has 12 divisors (see below), whose sum is σ = 10719646039960. Its totient is φ = 4947467466816.

The previous prime is 7421247306241. The next prime is 7421247306259. The reversal of 7421247306243 is 3426037421247.

7421247306243 is a `hidden beast` number, since 7 + 4 + 2 + 12 + 4 + 7 + 3 + 0 + 624 + 3 = 666.

It is not a de Polignac number, because 7421247306243 - 2¹ = 7421247306241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7421247306241) 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, 980998 + ... + 3975531.

Almost surely, 2^{7421247306243} is an apocalyptic number.

7421247306243 is a deficient number, since it is larger than the sum of its proper divisors (3298398733717).

7421247306243 is a wasteful number, since it uses less digits than its factorization.

7421247306243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5122898 (or 5122895 counting only the distinct ones).

The product of its (nonzero) digits is 1354752, while the sum is 45.

The spelling of 7421247306243 in words is "seven trillion, four hundred twenty-one billion, two hundred forty-seven million, three hundred six thousand, two hundred forty-three".