82354525391 has 2 divisors, whose sum is σ = 82354525392. Its totient is φ = 82354525390.

The previous prime is 82354525373. The next prime is 82354525411. The reversal of 82354525391 is 19352545328.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 82354525391 - 2²² = 82350331087 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82354525991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41177262695 + 41177262696.

It is an arithmetic number, because the mean of its divisors is an integer number (41177262696).

Almost surely, 2^82354525391 is an apocalyptic number.

82354525391 is a deficient number, since it is larger than the sum of its proper divisors (1).

82354525391 is an equidigital number, since it uses as much as digits as its factorization.

82354525391 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1296000, while the sum is 47.

The spelling of 82354525391 in words is "eighty-two billion, three hundred fifty-four million, five hundred twenty-five thousand, three hundred ninety-one".