7243412391 has 8 divisors (see below), whose sum is σ = 10730981360. Its totient is φ = 4828941576.

The previous prime is 7243412383. The next prime is 7243412399. The reversal of 7243412391 is 1932143427.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (7243412383) and next prime (7243412399).

It is not a de Polignac number, because 7243412391 - 2³ = 7243412383 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 (7243412399) 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, 134137240 + ... + 134137293.

It is an arithmetic number, because the mean of its divisors is an integer number (1341372670).

Almost surely, 2^7243412391 is an apocalyptic number.

7243412391 is a deficient number, since it is larger than the sum of its proper divisors (3487568969).

7243412391 is a wasteful number, since it uses less digits than its factorization.

7243412391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268274542 (or 268274536 counting only the distinct ones).

The product of its digits is 36288, while the sum is 36.

The square root of 7243412391 is about 85108.2392662426. The cubic root of 7243412391 is about 1934.8519398760.

The spelling of 7243412391 in words is "seven billion, two hundred forty-three million, four hundred twelve thousand, three hundred ninety-one".