13808816887057 has 2 divisors, whose sum is σ = 13808816887058. Its totient is φ = 13808816887056.

The previous prime is 13808816887003. The next prime is 13808816887109. The reversal of 13808816887057 is 75078861880831.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10828943421696 + 2979873465361 = 3290736^2 + 1726231^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13808816887057 is a prime.

It is not a weakly prime, because it can be changed into another prime (13808816807057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6904408443528 + 6904408443529.

It is an arithmetic number, because the mean of its divisors is an integer number (6904408443529).

Almost surely, 2^{13808816887057} is an apocalyptic number.

It is an amenable number.

13808816887057 is a deficient number, since it is larger than the sum of its proper divisors (1).

13808816887057 is an equidigital number, since it uses as much as digits as its factorization.

13808816887057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144506880, while the sum is 70.

The spelling of 13808816887057 in words is "thirteen trillion, eight hundred eight billion, eight hundred sixteen million, eight hundred eighty-seven thousand, fifty-seven".