8425834250917 has 4 divisors (see below), whose sum is σ = 8426252198476. Its totient is φ = 8425416303360.

The previous prime is 8425834250903. The next prime is 8425834250941. The reversal of 8425834250917 is 7190524385248.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7270136149761 + 1155698101156 = 2696319^2 + 1075034^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8425834250917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8425834250947) 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, 208943538 + ... + 208983859.

It is an arithmetic number, because the mean of its divisors is an integer number (2106563049619).

Almost surely, 2^{8425834250917} is an apocalyptic number.

It is an amenable number.

8425834250917 is a deficient number, since it is larger than the sum of its proper divisors (417947559).

8425834250917 is a wasteful number, since it uses less digits than its factorization.

8425834250917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 417947558.

The product of its (nonzero) digits is 19353600, while the sum is 58.

The spelling of 8425834250917 in words is "eight trillion, four hundred twenty-five billion, eight hundred thirty-four million, two hundred fifty thousand, nine hundred seventeen".