73242123840560 has 40 divisors (see below), whose sum is σ = 170312409397440. Its totient is φ = 29292639391232.

The previous prime is 73242123840551. The next prime is 73242123840577. The reversal of 73242123840560 is 6504832124237.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×73242123840560² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 65223317 + ... + 66336756.

It is an arithmetic number, because the mean of its divisors is an integer number (4257810234936).

Almost surely, 2^{73242123840560} is an apocalyptic number.

It is an amenable number.

73242123840560 is an abundant number, since it is smaller than the sum of its proper divisors (97070285556880).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

73242123840560 is a wasteful number, since it uses less digits than its factorization.

73242123840560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131567045 (or 131567039 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 47.

Adding to 73242123840560 its reverse (6504832124237), we get a palindrome (79746955964797).

The spelling of 73242123840560 in words is "seventy-three trillion, two hundred forty-two billion, one hundred twenty-three million, eight hundred forty thousand, five hundred sixty".