1328215627498 has 4 divisors (see below), whose sum is σ = 1992323441250. Its totient is φ = 664107813748.

The previous prime is 1328215627471. The next prime is 1328215627499. The reversal of 1328215627498 is 8947265128231.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1321205416969 + 7010210529 = 1149437^2 + 83727^2 .

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (1328215627499) 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 as a sum of consecutive naturals, namely, 332053906873 + ... + 332053906876.

Almost surely, 2^{1328215627498} is an apocalyptic number.

1328215627498 is a deficient number, since it is larger than the sum of its proper divisors (664107813752).

1328215627498 is an equidigital number, since it uses as much as digits as its factorization.

1328215627498 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 664107813751.

The product of its digits is 11612160, while the sum is 58.

The spelling of 1328215627498 in words is "one trillion, three hundred twenty-eight billion, two hundred fifteen million, six hundred twenty-seven thousand, four hundred ninety-eight".