981307440067 has 2 divisors, whose sum is σ = 981307440068. Its totient is φ = 981307440066.

The previous prime is 981307440049. The next prime is 981307440073. The reversal of 981307440067 is 760044703189.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 981307440067 - 2³¹ = 979159956419 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 981307440067.

It is not a weakly prime, because it can be changed into another prime (981307440007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 490653720033 + 490653720034.

It is an arithmetic number, because the mean of its divisors is an integer number (490653720034).

Almost surely, 2^981307440067 is an apocalyptic number.

981307440067 is a deficient number, since it is larger than the sum of its proper divisors (1).

981307440067 is an equidigital number, since it uses as much as digits as its factorization.

981307440067 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1016064, while the sum is 49.

The spelling of 981307440067 in words is "nine hundred eighty-one billion, three hundred seven million, four hundred forty thousand, sixty-seven".