83700847889 has 2 divisors, whose sum is σ = 83700847890. Its totient is φ = 83700847888.

The previous prime is 83700847843. The next prime is 83700847897. The reversal of 83700847889 is 98874800738.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 68958760000 + 14742087889 = 262600^2 + 121417^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-83700847889 is a prime.

It is not a weakly prime, because it can be changed into another prime (83700849889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41850423944 + 41850423945.

It is an arithmetic number, because the mean of its divisors is an integer number (41850423945).

Almost surely, 2^83700847889 is an apocalyptic number.

It is an amenable number.

83700847889 is a deficient number, since it is larger than the sum of its proper divisors (1).

83700847889 is an equidigital number, since it uses as much as digits as its factorization.

83700847889 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21676032, while the sum is 62.

The spelling of 83700847889 in words is "eighty-three billion, seven hundred million, eight hundred forty-seven thousand, eight hundred eighty-nine".