13861350262061 has 2 divisors, whose sum is σ = 13861350262062. Its totient is φ = 13861350262060.

The previous prime is 13861350262057. The next prime is 13861350262073. The reversal of 13861350262061 is 16026205316831.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9672037800100 + 4189312461961 = 3109990^2 + 2046781^2 .

It is a cyclic number.

It is not a de Polignac number, because 13861350262061 - 2² = 13861350262057 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13861350282061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6930675131030 + 6930675131031.

It is an arithmetic number, because the mean of its divisors is an integer number (6930675131031).

Almost surely, 2^{13861350262061} is an apocalyptic number.

It is an amenable number.

13861350262061 is a deficient number, since it is larger than the sum of its proper divisors (1).

13861350262061 is an equidigital number, since it uses as much as digits as its factorization.

13861350262061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 311040, while the sum is 44.

Adding to 13861350262061 its reverse (16026205316831), we get a palindrome (29887555578892).

The spelling of 13861350262061 in words is "thirteen trillion, eight hundred sixty-one billion, three hundred fifty million, two hundred sixty-two thousand, sixty-one".