83464393591 has 2 divisors, whose sum is σ = 83464393592. Its totient is φ = 83464393590.

The previous prime is 83464393513. The next prime is 83464393603. The reversal of 83464393591 is 19539346438.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 83464393591 - 2²⁹ = 82927522679 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83464393511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41732196795 + 41732196796.

It is an arithmetic number, because the mean of its divisors is an integer number (41732196796).

Almost surely, 2^83464393591 is an apocalyptic number.

83464393591 is a deficient number, since it is larger than the sum of its proper divisors (1).

83464393591 is an equidigital number, since it uses as much as digits as its factorization.

83464393591 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8398080, while the sum is 55.

The spelling of 83464393591 in words is "eighty-three billion, four hundred sixty-four million, three hundred ninety-three thousand, five hundred ninety-one".