8425932422391 has 24 divisors (see below), whose sum is σ = 13279878303120. Its totient is φ = 5105605920000.

The previous prime is 8425932422387. The next prime is 8425932422417. The reversal of 8425932422391 is 1932242395248.

8425932422391 is a `hidden beast` number, since 8 + 4 + 2 + 5 + 9 + 3 + 242 + 2 + 391 = 666.

It is not a de Polignac number, because 8425932422391 - 2² = 8425932422387 is a prime.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8425932422311) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7999860 + ... + 8991641.

It is an arithmetic number, because the mean of its divisors is an integer number (553328262630).

Almost surely, 2^{8425932422391} is an apocalyptic number.

8425932422391 is a deficient number, since it is larger than the sum of its proper divisors (4853945880729).

8425932422391 is a wasteful number, since it uses less digits than its factorization.

8425932422391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16996527 (or 16996524 counting only the distinct ones).

The product of its digits is 7464960, while the sum is 54.

The spelling of 8425932422391 in words is "eight trillion, four hundred twenty-five billion, nine hundred thirty-two million, four hundred twenty-two thousand, three hundred ninety-one".