971430624617 has 4 divisors (see below), whose sum is σ = 971523568260. Its totient is φ = 971337680976.

The previous prime is 971430624613. The next prime is 971430624667. The reversal of 971430624617 is 716426034179.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 716426034179 = 53 ⋅13517472343.

It can be written as a sum of positive squares in 2 ways, for example, as 737736695056 + 233693929561 = 858916^2 + 483419^2 .

It is a cyclic number.

It is not a de Polignac number, because 971430624617 - 2² = 971430624613 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (971430624611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46456142 + ... + 46477047.

It is an arithmetic number, because the mean of its divisors is an integer number (242880892065).

Almost surely, 2^971430624617 is an apocalyptic number.

It is an amenable number.

971430624617 is a deficient number, since it is larger than the sum of its proper divisors (92943643).

971430624617 is a wasteful number, since it uses less digits than its factorization.

971430624617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92943642.

The product of its (nonzero) digits is 1524096, while the sum is 50.

The spelling of 971430624617 in words is "nine hundred seventy-one billion, four hundred thirty million, six hundred twenty-four thousand, six hundred seventeen".