13855907519953 has 2 divisors, whose sum is σ = 13855907519954. Its totient is φ = 13855907519952.

The previous prime is 13855907519933. The next prime is 13855907520011. The reversal of 13855907519953 is 35991570955831.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8068457293009 + 5787450226944 = 2840503^2 + 2405712^2 .

It is a cyclic number.

It is not a de Polignac number, because 13855907519953 - 2¹⁷ = 13855907388881 is a prime.

It is not a weakly prime, because it can be changed into another prime (13855907519933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6927953759976 + 6927953759977.

It is an arithmetic number, because the mean of its divisors is an integer number (6927953759977).

Almost surely, 2^{13855907519953} is an apocalyptic number.

It is an amenable number.

13855907519953 is a deficient number, since it is larger than the sum of its proper divisors (1).

13855907519953 is an equidigital number, since it uses as much as digits as its factorization.

13855907519953 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 229635000, while the sum is 70.

The spelling of 13855907519953 in words is "thirteen trillion, eight hundred fifty-five billion, nine hundred seven million, five hundred nineteen thousand, nine hundred fifty-three".