5111016885461 has 2 divisors, whose sum is σ = 5111016885462. Its totient is φ = 5111016885460.

The previous prime is 5111016885449. The next prime is 5111016885493. The reversal of 5111016885461 is 1645886101115.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4843630680625 + 267386204836 = 2200825^2 + 517094^2 .

It is a cyclic number.

It is not a de Polignac number, because 5111016885461 - 2⁶ = 5111016885397 is a prime.

It is a super-2 number, since 2×5111016885461² (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 (5111016885061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2555508442730 + 2555508442731.

It is an arithmetic number, because the mean of its divisors is an integer number (2555508442731).

Almost surely, 2^{5111016885461} is an apocalyptic number.

It is an amenable number.

5111016885461 is a deficient number, since it is larger than the sum of its proper divisors (1).

5111016885461 is an equidigital number, since it uses as much as digits as its factorization.

5111016885461 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 230400, while the sum is 47.

The spelling of 5111016885461 in words is "five trillion, one hundred eleven billion, sixteen million, eight hundred eighty-five thousand, four hundred sixty-one".