168970783843 has 2 divisors, whose sum is σ = 168970783844. Its totient is φ = 168970783842.

The previous prime is 168970783811. The next prime is 168970783853. The reversal of 168970783843 is 348387079861.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 168970783843 - 2⁵ = 168970783811 is a prime.

It is a super-2 number, since 2×168970783843² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (168970783853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84485391921 + 84485391922.

It is an arithmetic number, because the mean of its divisors is an integer number (84485391922).

Almost surely, 2^168970783843 is an apocalyptic number.

168970783843 is a deficient number, since it is larger than the sum of its proper divisors (1).

168970783843 is an equidigital number, since it uses as much as digits as its factorization.

168970783843 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48771072, while the sum is 64.

The spelling of 168970783843 in words is "one hundred sixty-eight billion, nine hundred seventy million, seven hundred eighty-three thousand, eight hundred forty-three".