73743012225 has 96 divisors (see below), whose sum is σ = 138719692800. Its totient is φ = 38396635200.

The previous prime is 73743012197. The next prime is 73743012247. The reversal of 73743012225 is 52221034737.

It is not a de Polignac number, because 73743012225 - 2⁵ = 73743012193 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 73743012225.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 4928806 + ... + 4943744.

It is an arithmetic number, because the mean of its divisors is an integer number (1444996800).

Almost surely, 2^73743012225 is an apocalyptic number.

73743012225 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

73743012225 is a deficient number, since it is larger than the sum of its proper divisors (64976680575).

73743012225 is a wasteful number, since it uses less digits than its factorization.

73743012225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15132 (or 15121 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 36.

The spelling of 73743012225 in words is "seventy-three billion, seven hundred forty-three million, twelve thousand, two hundred twenty-five".