73244847481 has 4 divisors (see below), whose sum is σ = 78879066532. Its totient is φ = 67610628432.

The previous prime is 73244847479. The next prime is 73244847509. The reversal of 73244847481 is 18474844237.

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

It can be written as a sum of positive squares in 2 ways, for example, as 47521820025 + 25723027456 = 217995^2 + 160384^2 .

It is a cyclic number.

It is not a de Polignac number, because 73244847481 - 2¹ = 73244847479 is a prime.

It is a super-2 number, since 2×73244847481² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73244844481) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2817109506 + ... + 2817109531.

It is an arithmetic number, because the mean of its divisors is an integer number (19719766633).

Almost surely, 2^73244847481 is an apocalyptic number.

It is an amenable number.

73244847481 is a deficient number, since it is larger than the sum of its proper divisors (5634219051).

73244847481 is a wasteful number, since it uses less digits than its factorization.

73244847481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5634219050.

The product of its digits is 4816896, while the sum is 52.

The spelling of 73244847481 in words is "seventy-three billion, two hundred forty-four million, eight hundred forty-seven thousand, four hundred eighty-one".