1326251421407 has 8 divisors (see below), whose sum is σ = 1485922968912. Its totient is φ = 1173097080000.

The previous prime is 1326251421389. The next prime is 1326251421529. The reversal of 1326251421407 is 7041241526231.

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 1326251421407 - 2⁶ = 1326251421343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1326251427407) 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, 1629301094 + ... + 1629301907.

It is an arithmetic number, because the mean of its divisors is an integer number (185740371114).

Almost surely, 2^{1326251421407} is an apocalyptic number.

1326251421407 is a deficient number, since it is larger than the sum of its proper divisors (159671547505).

1326251421407 is a wasteful number, since it uses less digits than its factorization.

1326251421407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3258603049.

The product of its (nonzero) digits is 80640, while the sum is 38.

Adding to 1326251421407 its reverse (7041241526231), we get a palindrome (8367492947638).

The spelling of 1326251421407 in words is "one trillion, three hundred twenty-six billion, two hundred fifty-one million, four hundred twenty-one thousand, four hundred seven".