71384303821825 has 48 divisors (see below), whose sum is σ = 91754209229760. Its totient is φ = 55067425585920.

The previous prime is 71384303821771. The next prime is 71384303821843. The reversal of 71384303821825 is 52812830348317.

It is a happy number.

It is not a de Polignac number, because 71384303821825 - 2¹⁷ = 71384303690753 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12798387 + ... + 17509063.

It is an arithmetic number, because the mean of its divisors is an integer number (1911546025620).

Almost surely, 2^{71384303821825} is an apocalyptic number.

It is an amenable number.

71384303821825 is a deficient number, since it is larger than the sum of its proper divisors (20369905407935).

71384303821825 is a wasteful number, since it uses less digits than its factorization.

71384303821825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4710946 (or 4710941 counting only the distinct ones).

The product of its (nonzero) digits is 7741440, while the sum is 55.

The spelling of 71384303821825 in words is "seventy-one trillion, three hundred eighty-four billion, three hundred three million, eight hundred twenty-one thousand, eight hundred twenty-five".