84697572319 has 2 divisors, whose sum is σ = 84697572320. Its totient is φ = 84697572318.

The previous prime is 84697572301. The next prime is 84697572383. The reversal of 84697572319 is 91327579648.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 84697572319 - 2⁵ = 84697572287 is a prime.

It is a super-2 number, since 2×84697572319² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84697572389) 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 as a sum of consecutive naturals, namely, 42348786159 + 42348786160.

It is an arithmetic number, because the mean of its divisors is an integer number (42348786160).

Almost surely, 2^84697572319 is an apocalyptic number.

84697572319 is a deficient number, since it is larger than the sum of its proper divisors (1).

84697572319 is an equidigital number, since it uses as much as digits as its factorization.

84697572319 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 22861440, while the sum is 61.

The spelling of 84697572319 in words is "eighty-four billion, six hundred ninety-seven million, five hundred seventy-two thousand, three hundred nineteen".