8013700661777 has 2 divisors, whose sum is σ = 8013700661778. Its totient is φ = 8013700661776.

The previous prime is 8013700661737. The next prime is 8013700661803. The reversal of 8013700661777 is 7771660073108.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6141951063616 + 1871749598161 = 2478296^2 + 1368119^2 .

It is a cyclic number.

It is not a de Polignac number, because 8013700661777 - 2¹² = 8013700657681 is a prime.

It is not a weakly prime, because it can be changed into another prime (8013700661737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4006850330888 + 4006850330889.

It is an arithmetic number, because the mean of its divisors is an integer number (4006850330889).

Almost surely, 2^{8013700661777} is an apocalyptic number.

It is an amenable number.

8013700661777 is a deficient number, since it is larger than the sum of its proper divisors (1).

8013700661777 is an equidigital number, since it uses as much as digits as its factorization.

8013700661777 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2074464, while the sum is 53.

The spelling of 8013700661777 in words is "eight trillion, thirteen billion, seven hundred million, six hundred sixty-one thousand, seven hundred seventy-seven".