73240215563 has 2 divisors, whose sum is σ = 73240215564. Its totient is φ = 73240215562.

The previous prime is 73240215539. The next prime is 73240215617. The reversal of 73240215563 is 36551204237.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 73240215563 - 2²⁸ = 72971780107 is a prime.

It is not a weakly prime, because it can be changed into another prime (73240215533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36620107781 + 36620107782.

It is an arithmetic number, because the mean of its divisors is an integer number (36620107782).

Almost surely, 2^73240215563 is an apocalyptic number.

73240215563 is a deficient number, since it is larger than the sum of its proper divisors (1).

73240215563 is an equidigital number, since it uses as much as digits as its factorization.

73240215563 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 151200, while the sum is 38.

The spelling of 73240215563 in words is "seventy-three billion, two hundred forty million, two hundred fifteen thousand, five hundred sixty-three".