1577948876579 has 2 divisors, whose sum is σ = 1577948876580. Its totient is φ = 1577948876578.

The previous prime is 1577948876551. The next prime is 1577948876611. The reversal of 1577948876579 is 9756788497751.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1577948876579 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1577948876497 and 1577948876506.

It is not a weakly prime, because it can be changed into another prime (1577948876519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 788974438289 + 788974438290.

It is an arithmetic number, because the mean of its divisors is an integer number (788974438290).

Almost surely, 2^{1577948876579} is an apocalyptic number.

1577948876579 is a deficient number, since it is larger than the sum of its proper divisors (1).

1577948876579 is an equidigital number, since it uses as much as digits as its factorization.

1577948876579 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7468070400, while the sum is 83.

The spelling of 1577948876579 in words is "one trillion, five hundred seventy-seven billion, nine hundred forty-eight million, eight hundred seventy-six thousand, five hundred seventy-nine".