4051349869813 has 2 divisors, whose sum is σ = 4051349869814. Its totient is φ = 4051349869812.

The previous prime is 4051349869783. The next prime is 4051349869909. The reversal of 4051349869813 is 3189689431504.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3637079994769 + 414269875044 = 1907113^2 + 643638^2 .

It is a cyclic number.

It is not a de Polignac number, because 4051349869813 - 2²⁵ = 4051316315381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4051349869013) 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, 2025674934906 + 2025674934907.

It is an arithmetic number, because the mean of its divisors is an integer number (2025674934907).

Almost surely, 2^{4051349869813} is an apocalyptic number.

It is an amenable number.

4051349869813 is a deficient number, since it is larger than the sum of its proper divisors (1).

4051349869813 is an equidigital number, since it uses as much as digits as its factorization.

4051349869813 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22394880, while the sum is 61.

The spelling of 4051349869813 in words is "four trillion, fifty-one billion, three hundred forty-nine million, eight hundred sixty-nine thousand, eight hundred thirteen".