1026491508673 has 8 divisors (see below), whose sum is σ = 1038166648200. Its totient is φ = 1014819514368.

The previous prime is 1026491508671. The next prime is 1026491508677. The reversal of 1026491508673 is 3768051946201.

It can be written as a sum of positive squares in 4 ways, for example, as 70695896769 + 955795611904 = 265887^2 + 977648^2 .

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 1026491508673 - 2¹ = 1026491508671 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1026491508673.

It is not an unprimeable number, because it can be changed into a prime (1026491508671) 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, 126736 + ... + 1438417.

It is an arithmetic number, because the mean of its divisors is an integer number (129770831025).

It is a 2-persistent number, because it is pandigital, and so is 2⋅1026491508673 = 2052983017346, but 3⋅1026491508673 = 3079474526019 is not.

Almost surely, 2^{1026491508673} is an apocalyptic number.

It is an amenable number.

1026491508673 is a deficient number, since it is larger than the sum of its proper divisors (11675139527).

1026491508673 is an equidigital number, since it uses as much as digits as its factorization.

1026491508673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1572611.

The product of its (nonzero) digits is 2177280, while the sum is 52.

The spelling of 1026491508673 in words is "one trillion, twenty-six billion, four hundred ninety-one million, five hundred eight thousand, six hundred seventy-three".