84261295939 has 2 divisors, whose sum is σ = 84261295940. Its totient is φ = 84261295938.

The previous prime is 84261295933. The next prime is 84261295997. The reversal of 84261295939 is 93959216248.

It is an a-pointer prime, because the next prime (84261295997) can be obtained adding 84261295939 to its sum of digits (58).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 84261295939 - 2⁵ = 84261295907 is a prime.

It is not a weakly prime, because it can be changed into another prime (84261295933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42130647969 + 42130647970.

It is an arithmetic number, because the mean of its divisors is an integer number (42130647970).

Almost surely, 2^84261295939 is an apocalyptic number.

84261295939 is a deficient number, since it is larger than the sum of its proper divisors (1).

84261295939 is an equidigital number, since it uses as much as digits as its factorization.

84261295939 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8398080, while the sum is 58.

The spelling of 84261295939 in words is "eighty-four billion, two hundred sixty-one million, two hundred ninety-five thousand, nine hundred thirty-nine".