1328215627499 has 2 divisors, whose sum is σ = 1328215627500. Its totient is φ = 1328215627498.

The previous prime is 1328215627471. The next prime is 1328215627523. The reversal of 1328215627499 is 9947265128231.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1328215627499 - 2⁸ = 1328215627243 is a prime.

It is not a weakly prime, because it can be changed into another prime (1328215627399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 664107813749 + 664107813750.

It is an arithmetic number, because the mean of its divisors is an integer number (664107813750).

Almost surely, 2^{1328215627499} is an apocalyptic number.

1328215627499 is a deficient number, since it is larger than the sum of its proper divisors (1).

1328215627499 is an equidigital number, since it uses as much as digits as its factorization.

1328215627499 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13063680, while the sum is 59.

The spelling of 1328215627499 in words is "one trillion, three hundred twenty-eight billion, two hundred fifteen million, six hundred twenty-seven thousand, four hundred ninety-nine".