83854259773 has 2 divisors, whose sum is σ = 83854259774. Its totient is φ = 83854259772.

The previous prime is 83854259747. The next prime is 83854259779. The reversal of 83854259773 is 37795245838.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52919781849 + 30934477924 = 230043^2 + 175882^2 .

It is a cyclic number.

It is not a de Polignac number, because 83854259773 - 2²⁵ = 83820705341 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83854259779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41927129886 + 41927129887.

It is an arithmetic number, because the mean of its divisors is an integer number (41927129887).

Almost surely, 2^83854259773 is an apocalyptic number.

It is an amenable number.

83854259773 is a deficient number, since it is larger than the sum of its proper divisors (1).

83854259773 is an equidigital number, since it uses as much as digits as its factorization.

83854259773 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 50803200, while the sum is 61.

The spelling of 83854259773 in words is "eighty-three billion, eight hundred fifty-four million, two hundred fifty-nine thousand, seven hundred seventy-three".