83417777861 has 32 divisors (see below), whose sum is σ = 96912599040. Its totient is φ = 71048577600.

The previous prime is 83417777843. The next prime is 83417777873. The reversal of 83417777861 is 16877771438.

It is not a de Polignac number, because 83417777861 - 2⁶ = 83417777797 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 83417777861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83417777831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8456150 + ... + 8466008.

It is an arithmetic number, because the mean of its divisors is an integer number (3028518720).

Almost surely, 2^83417777861 is an apocalyptic number.

It is an amenable number.

83417777861 is a deficient number, since it is larger than the sum of its proper divisors (13494821179).

83417777861 is a wasteful number, since it uses less digits than its factorization.

83417777861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10577.

The product of its digits is 11063808, while the sum is 59.

The spelling of 83417777861 in words is "eighty-three billion, four hundred seventeen million, seven hundred seventy-seven thousand, eight hundred sixty-one".