1328458133237 has 4 divisors (see below), whose sum is σ = 1341355785120. Its totient is φ = 1315560481356.

The previous prime is 1328458133221. The next prime is 1328458133269. The reversal of 1328458133237 is 7323318548231.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1328458133237 - 2⁴ = 1328458133221 is a prime.

It is a super-4 number, since 4×1328458133237⁴ (a number of 50 digits) contains 4444 as substring. Note that it is a super-d number also for d = 3.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1328458133137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6448825787 + ... + 6448825992.

It is an arithmetic number, because the mean of its divisors is an integer number (335338946280).

Almost surely, 2^{1328458133237} is an apocalyptic number.

It is an amenable number.

1328458133237 is a deficient number, since it is larger than the sum of its proper divisors (12897651883).

1328458133237 is a wasteful number, since it uses less digits than its factorization.

1328458133237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12897651882.

The product of its digits is 2903040, while the sum is 50.

The spelling of 1328458133237 in words is "one trillion, three hundred twenty-eight billion, four hundred fifty-eight million, one hundred thirty-three thousand, two hundred thirty-seven".