1577317934641 has 2 divisors, whose sum is σ = 1577317934642. Its totient is φ = 1577317934640.

The previous prime is 1577317934597. The next prime is 1577317934659. The reversal of 1577317934641 is 1464397137751.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1480018233600 + 97299701041 = 1216560^2 + 311929^2 .

It is a cyclic number.

It is not a de Polignac number, because 1577317934641 - 2¹⁷ = 1577317803569 is a prime.

It is not a weakly prime, because it can be changed into another prime (1577317934671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 788658967320 + 788658967321.

It is an arithmetic number, because the mean of its divisors is an integer number (788658967321).

Almost surely, 2^{1577317934641} is an apocalyptic number.

It is an amenable number.

1577317934641 is a deficient number, since it is larger than the sum of its proper divisors (1).

1577317934641 is an equidigital number, since it uses as much as digits as its factorization.

1577317934641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13335840, while the sum is 58.

The spelling of 1577317934641 in words is "one trillion, five hundred seventy-seven billion, three hundred seventeen million, nine hundred thirty-four thousand, six hundred forty-one".