1018322417691 has 6 divisors (see below), whose sum is σ = 1470910158900. Its totient is φ = 678881611788.

The previous prime is 1018322417689. The next prime is 1018322417711. The reversal of 1018322417691 is 1967142238101.

It is not a de Polignac number, because 1018322417691 - 2¹ = 1018322417689 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1018322417641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 56573467641 + ... + 56573467658.

It is an arithmetic number, because the mean of its divisors is an integer number (245151693150).

Almost surely, 2^{1018322417691} is an apocalyptic number.

1018322417691 is a deficient number, since it is larger than the sum of its proper divisors (452587741209).

1018322417691 is a wasteful number, since it uses less digits than its factorization.

1018322417691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113146935305 (or 113146935302 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The spelling of 1018322417691 in words is "one trillion, eighteen billion, three hundred twenty-two million, four hundred seventeen thousand, six hundred ninety-one".