1018931072713 has 8 divisors (see below), whose sum is σ = 1021530147336. Its totient is φ = 1016335219200.

The previous prime is 1018931072683. The next prime is 1018931072741. The reversal of 1018931072713 is 3172701398101.

It can be written as a sum of positive squares in 4 ways, for example, as 844018704 + 1018087054009 = 29052^2 + 1009003^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1018931072713 - 2⁵ = 1018931072681 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1018931072713.

It is not an unprimeable number, because it can be changed into a prime (1018931672713) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 171178 + ... + 1437763.

It is an arithmetic number, because the mean of its divisors is an integer number (127691268417).

Almost surely, 2^{1018931072713} is an apocalyptic number.

It is an amenable number.

1018931072713 is a deficient number, since it is larger than the sum of its proper divisors (2599074623).

1018931072713 is an equidigital number, since it uses as much as digits as its factorization.

1018931072713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1610555.

The product of its (nonzero) digits is 63504, while the sum is 43.

The spelling of 1018931072713 in words is "one trillion, eighteen billion, nine hundred thirty-one million, seventy-two thousand, seven hundred thirteen".