7421245413538 has 16 divisors (see below), whose sum is σ = 12147247451520. Its totient is φ = 3372351336400.

The previous prime is 7421245413443. The next prime is 7421245413551. The reversal of 7421245413538 is 8353145421247.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 7421245413491 and 7421245413500.

It is an unprimeable number.

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, 47021098 + ... + 47178661.

It is an arithmetic number, because the mean of its divisors is an integer number (759202965720).

Almost surely, 2^{7421245413538} is an apocalyptic number.

7421245413538 is a deficient number, since it is larger than the sum of its proper divisors (4726002037982).

7421245413538 is a wasteful number, since it uses less digits than its factorization.

7421245413538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94203353.

The product of its digits is 3225600, while the sum is 49.

The spelling of 7421245413538 in words is "seven trillion, four hundred twenty-one billion, two hundred forty-five million, four hundred thirteen thousand, five hundred thirty-eight".