1328937392677 has 2 divisors, whose sum is σ = 1328937392678. Its totient is φ = 1328937392676.

The previous prime is 1328937392663. The next prime is 1328937392687. The reversal of 1328937392677 is 7762937398231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 814237327201 + 514700065476 = 902351^2 + 717426^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1328937392677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1328937392647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 664468696338 + 664468696339.

It is an arithmetic number, because the mean of its divisors is an integer number (664468696339).

Almost surely, 2^{1328937392677} is an apocalyptic number.

It is an amenable number.

1328937392677 is a deficient number, since it is larger than the sum of its proper divisors (1).

1328937392677 is an equidigital number, since it uses as much as digits as its factorization.

1328937392677 is an evil number, because the sum of its binary digits is even.

The product of its digits is 144027072, while the sum is 67.

The spelling of 1328937392677 in words is "one trillion, three hundred twenty-eight billion, nine hundred thirty-seven million, three hundred ninety-two thousand, six hundred seventy-seven".