1018247898493 has 24 divisors (see below), whose sum is σ = 1226685191424. Its totient is φ = 841877971200.

The previous prime is 1018247898491. The next prime is 1018247898497. The reversal of 1018247898493 is 3948987428101.

It is not a de Polignac number, because 1018247898493 - 2¹ = 1018247898491 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1018247898491) 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 23 ways as a sum of consecutive naturals, for example, 625428 + ... + 1558093.

It is an arithmetic number, because the mean of its divisors is an integer number (51111882976).

Almost surely, 2^{1018247898493} is an apocalyptic number.

It is an amenable number.

1018247898493 is a deficient number, since it is larger than the sum of its proper divisors (208437292931).

1018247898493 is a wasteful number, since it uses less digits than its factorization.

1018247898493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2183873 (or 2183866 counting only the distinct ones).

The product of its (nonzero) digits is 27869184, while the sum is 64.

The spelling of 1018247898493 in words is "one trillion, eighteen billion, two hundred forty-seven million, eight hundred ninety-eight thousand, four hundred ninety-three".