6411987105101 has 2 divisors, whose sum is σ = 6411987105102. Its totient is φ = 6411987105100.

The previous prime is 6411987105079. The next prime is 6411987105107. The reversal of 6411987105101 is 1015017891146.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5354434021225 + 1057553083876 = 2313965^2 + 1028374^2 .

It is a cyclic number.

It is not a de Polignac number, because 6411987105101 - 2¹⁸ = 6411986842957 is a prime.

It is a super-2 number, since 2×6411987105101² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6411987105107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3205993552550 + 3205993552551.

It is an arithmetic number, because the mean of its divisors is an integer number (3205993552551).

Almost surely, 2^{6411987105101} is an apocalyptic number.

It is an amenable number.

6411987105101 is a deficient number, since it is larger than the sum of its proper divisors (1).

6411987105101 is an equidigital number, since it uses as much as digits as its factorization.

6411987105101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60480, while the sum is 44.

The spelling of 6411987105101 in words is "six trillion, four hundred eleven billion, nine hundred eighty-seven million, one hundred five thousand, one hundred one".