83961230939 has 2 divisors, whose sum is σ = 83961230940. Its totient is φ = 83961230938.

The previous prime is 83961230933. The next prime is 83961230971. The reversal of 83961230939 is 93903216938.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-83961230939 is a prime.

It is not a weakly prime, because it can be changed into another prime (83961230933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41980615469 + 41980615470.

It is an arithmetic number, because the mean of its divisors is an integer number (41980615470).

Almost surely, 2^83961230939 is an apocalyptic number.

83961230939 is a deficient number, since it is larger than the sum of its proper divisors (1).

83961230939 is an equidigital number, since it uses as much as digits as its factorization.

83961230939 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1889568, while the sum is 53.

The spelling of 83961230939 in words is "eighty-three billion, nine hundred sixty-one million, two hundred thirty thousand, nine hundred thirty-nine".