83859029693 has 2 divisors, whose sum is σ = 83859029694. Its totient is φ = 83859029692.

The previous prime is 83859029671. The next prime is 83859029707. The reversal of 83859029693 is 39692095838.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 81075728644 + 2783301049 = 284738^2 + 52757^2 .

It is a cyclic number.

It is not a de Polignac number, because 83859029693 - 2¹⁴ = 83859013309 is a prime.

It is a super-2 number, since 2×83859029693² (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 (83859029593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41929514846 + 41929514847.

It is an arithmetic number, because the mean of its divisors is an integer number (41929514847).

Almost surely, 2^83859029693 is an apocalyptic number.

It is an amenable number.

83859029693 is a deficient number, since it is larger than the sum of its proper divisors (1).

83859029693 is an equidigital number, since it uses as much as digits as its factorization.

83859029693 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25194240, while the sum is 62.

The spelling of 83859029693 in words is "eighty-three billion, eight hundred fifty-nine million, twenty-nine thousand, six hundred ninety-three".