83877040189 has 2 divisors, whose sum is σ = 83877040190. Its totient is φ = 83877040188.

The previous prime is 83877040171. The next prime is 83877040211. The reversal of 83877040189 is 98104077838.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 57856124089 + 26020916100 = 240533^2 + 161310^2 .

It is a cyclic number.

It is not a de Polignac number, because 83877040189 - 2⁵ = 83877040157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83877040109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41938520094 + 41938520095.

It is an arithmetic number, because the mean of its divisors is an integer number (41938520095).

Almost surely, 2^83877040189 is an apocalyptic number.

It is an amenable number.

83877040189 is a deficient number, since it is larger than the sum of its proper divisors (1).

83877040189 is an equidigital number, since it uses as much as digits as its factorization.

83877040189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2709504, while the sum is 55.

The spelling of 83877040189 in words is "eighty-three billion, eight hundred seventy-seven million, forty thousand, one hundred eighty-nine".