83771984086519 has 2 divisors, whose sum is σ = 83771984086520. Its totient is φ = 83771984086518.

The previous prime is 83771984086459. The next prime is 83771984086597. The reversal of 83771984086519 is 91568048917738.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 83771984086519 - 2¹⁷ = 83771983955447 is a prime.

It is a super-2 number, since 2×83771984086519² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83771984036519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41885992043259 + 41885992043260.

It is an arithmetic number, because the mean of its divisors is an integer number (41885992043260).

Almost surely, 2^{83771984086519} is an apocalyptic number.

83771984086519 is a deficient number, since it is larger than the sum of its proper divisors (1).

83771984086519 is an equidigital number, since it uses as much as digits as its factorization.

83771984086519 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 731566080, while the sum is 76.

The spelling of 83771984086519 in words is "eighty-three trillion, seven hundred seventy-one billion, nine hundred eighty-four million, eighty-six thousand, five hundred nineteen".