1538485401001 has 8 divisors (see below), whose sum is σ = 1541140995240. Its totient is φ = 1535830013952.

The previous prime is 1538485400993. The next prime is 1538485401031. The reversal of 1538485401001 is 1001045848351.

It can be written as a sum of positive squares in 4 ways, for example, as 1201216000000 + 337269401001 = 1096000^2 + 580749^2 .

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 1538485401001 - 2³ = 1538485400993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1538485401031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25996621 + ... + 26055733.

It is an arithmetic number, because the mean of its divisors is an integer number (192642624405).

Almost surely, 2^{1538485401001} is an apocalyptic number.

It is an amenable number.

1538485401001 is a deficient number, since it is larger than the sum of its proper divisors (2655594239).

1538485401001 is an equidigital number, since it uses as much as digits as its factorization.

1538485401001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103595.

The product of its (nonzero) digits is 76800, while the sum is 40.

The spelling of 1538485401001 in words is "one trillion, five hundred thirty-eight billion, four hundred eighty-five million, four hundred one thousand, one".