1491326424001 has 16 divisors (see below), whose sum is σ = 1499899600080. Its totient is φ = 1482785187840.

The previous prime is 1491326423963. The next prime is 1491326424011. The reversal of 1491326424001 is 1004246231941.

It can be written as a sum of positive squares in 8 ways, for example, as 20985868225 + 1470340555776 = 144865^2 + 1212576^2 .

It is a cyclic number.

It is not a de Polignac number, because 1491326424001 - 2¹¹ = 1491326421953 is a prime.

It is a super-2 number, since 2×1491326424001² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1491326424011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 178022125 + ... + 178030501.

It is an arithmetic number, because the mean of its divisors is an integer number (93743725005).

Almost surely, 2^{1491326424001} is an apocalyptic number.

It is an amenable number.

1491326424001 is a deficient number, since it is larger than the sum of its proper divisors (8573176079).

1491326424001 is an equidigital number, since it uses as much as digits as its factorization.

1491326424001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10164.

The product of its (nonzero) digits is 41472, while the sum is 37.

The spelling of 1491326424001 in words is "one trillion, four hundred ninety-one billion, three hundred twenty-six million, four hundred twenty-four thousand, one".