71282520401 has 4 divisors (see below), whose sum is σ = 72141346032. Its totient is φ = 70423694772.

The previous prime is 71282520377. The next prime is 71282520403. The reversal of 71282520401 is 10402528217.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 71282520401 - 2³⁴ = 54102651217 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (71282520403) 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, 429412691 + ... + 429412856.

It is an arithmetic number, because the mean of its divisors is an integer number (18035336508).

Almost surely, 2^71282520401 is an apocalyptic number.

It is an amenable number.

71282520401 is a deficient number, since it is larger than the sum of its proper divisors (858825631).

71282520401 is an equidigital number, since it uses as much as digits as its factorization.

71282520401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 858825630.

The product of its (nonzero) digits is 8960, while the sum is 32.

The spelling of 71282520401 in words is "seventy-one billion, two hundred eighty-two million, five hundred twenty thousand, four hundred one".