73785242825 has 12 divisors (see below), whose sum is σ = 104564230080. Its totient is φ = 50595594960.

The previous prime is 73785242821. The next prime is 73785242831. The reversal of 73785242825 is 52824258737.

It is a happy number.

It is not a de Polignac number, because 73785242825 - 2² = 73785242821 is a prime.

It is not an unprimeable number, because it can be changed into a prime (73785242821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 210814805 + ... + 210815154.

It is an arithmetic number, because the mean of its divisors is an integer number (8713685840).

Almost surely, 2^73785242825 is an apocalyptic number.

It is an amenable number.

73785242825 is a deficient number, since it is larger than the sum of its proper divisors (30778987255).

73785242825 is a wasteful number, since it uses less digits than its factorization.

73785242825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421629976 (or 421629971 counting only the distinct ones).

The product of its digits is 7526400, while the sum is 53.

The spelling of 73785242825 in words is "seventy-three billion, seven hundred eighty-five million, two hundred forty-two thousand, eight hundred twenty-five".