7426420281543 has 4 divisors (see below), whose sum is σ = 9901893708728. Its totient is φ = 4950946854360.

The previous prime is 7426420281509. The next prime is 7426420281551. The reversal of 7426420281543 is 3451820246247.

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

It is not a de Polignac number, because 7426420281543 - 2³⁶ = 7357700804807 is a prime.

It is a super-2 number, since 2×7426420281543² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7426420281492 and 7426420281501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7426420281563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1237736713588 + ... + 1237736713593.

It is an arithmetic number, because the mean of its divisors is an integer number (2475473427182).

Almost surely, 2^{7426420281543} is an apocalyptic number.

7426420281543 is a deficient number, since it is larger than the sum of its proper divisors (2475473427185).

7426420281543 is a wasteful number, since it uses less digits than its factorization.

7426420281543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2475473427184.

The product of its (nonzero) digits is 2580480, while the sum is 48.

The spelling of 7426420281543 in words is "seven trillion, four hundred twenty-six billion, four hundred twenty million, two hundred eighty-one thousand, five hundred forty-three".