5111016885449 has 2 divisors, whose sum is σ = 5111016885450. Its totient is φ = 5111016885448.

The previous prime is 5111016885439. The next prime is 5111016885461. The reversal of 5111016885449 is 9445886101115.

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., 2642055193600 + 2468961691849 = 1625440^2 + 1571293^2 .

It is a cyclic number.

It is not a de Polignac number, because 5111016885449 - 2³⁶ = 5042297408713 is a prime.

It is a super-2 number, since 2×5111016885449² (a number of 26 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 5111016885449.

It is not a weakly prime, because it can be changed into another prime (5111016885439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2555508442724 + 2555508442725.

It is an arithmetic number, because the mean of its divisors is an integer number (2555508442725).

Almost surely, 2^{5111016885449} is an apocalyptic number.

It is an amenable number.

5111016885449 is a deficient number, since it is larger than the sum of its proper divisors (1).

5111016885449 is an equidigital number, since it uses as much as digits as its factorization.

5111016885449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1382400, while the sum is 53.

The spelling of 5111016885449 in words is "five trillion, one hundred eleven billion, sixteen million, eight hundred eighty-five thousand, four hundred forty-nine".