5390490246881 has 2 divisors, whose sum is σ = 5390490246882. Its totient is φ = 5390490246880.

The previous prime is 5390490246787. The next prime is 5390490246917. The reversal of 5390490246881 is 1886420940935.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5389571187025 + 919059856 = 2321545^2 + 30316^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5390490246881 is a prime.

It is a super-2 number, since 2×5390490246881² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 5390490246881.

It is not a weakly prime, because it can be changed into another prime (5390490266881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2695245123440 + 2695245123441.

It is an arithmetic number, because the mean of its divisors is an integer number (2695245123441).

Almost surely, 2^{5390490246881} is an apocalyptic number.

It is an amenable number.

5390490246881 is a deficient number, since it is larger than the sum of its proper divisors (1).

5390490246881 is an equidigital number, since it uses as much as digits as its factorization.

5390490246881 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14929920, while the sum is 59.

The spelling of 5390490246881 in words is "five trillion, three hundred ninety billion, four hundred ninety million, two hundred forty-six thousand, eight hundred eighty-one".