84163338739 has 2 divisors, whose sum is σ = 84163338740. Its totient is φ = 84163338738.

The previous prime is 84163338737. The next prime is 84163338817. The reversal of 84163338739 is 93783336148.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 84163338739 - 2¹ = 84163338737 is a prime.

It is a super-2 number, since 2×84163338739² (a number of 23 digits) contains 22 as substring.

Together with 84163338737, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 84163338739.

It is not a weakly prime, because it can be changed into another prime (84163338737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42081669369 + 42081669370.

It is an arithmetic number, because the mean of its divisors is an integer number (42081669370).

Almost surely, 2^84163338739 is an apocalyptic number.

84163338739 is a deficient number, since it is larger than the sum of its proper divisors (1).

84163338739 is an equidigital number, since it uses as much as digits as its factorization.

84163338739 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7838208, while the sum is 55.

The spelling of 84163338739 in words is "eighty-four billion, one hundred sixty-three million, three hundred thirty-eight thousand, seven hundred thirty-nine".