9855577707013 has 2 divisors, whose sum is σ = 9855577707014. Its totient is φ = 9855577707012.

The previous prime is 9855577706981. The next prime is 9855577707043. The reversal of 9855577707013 is 3107077755589.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8040893908609 + 1814683798404 = 2835647^2 + 1347102^2 .

It is a cyclic number.

It is not a de Polignac number, because 9855577707013 - 2⁵ = 9855577706981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9855577707043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4927788853506 + 4927788853507.

It is an arithmetic number, because the mean of its divisors is an integer number (4927788853507).

Almost surely, 2^{9855577707013} is an apocalyptic number.

It is an amenable number.

9855577707013 is a deficient number, since it is larger than the sum of its proper divisors (1).

9855577707013 is an equidigital number, since it uses as much as digits as its factorization.

9855577707013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64827000, while the sum is 64.

The spelling of 9855577707013 in words is "nine trillion, eight hundred fifty-five billion, five hundred seventy-seven million, seven hundred seven thousand, thirteen".