5248786431989 has 2 divisors, whose sum is σ = 5248786431990. Its totient is φ = 5248786431988.

The previous prime is 5248786431983. The next prime is 5248786432033. The reversal of 5248786431989 is 9891346878425.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3257772304900 + 1991014127089 = 1804930^2 + 1411033^2 .

It is a cyclic number.

It is not a de Polignac number, because 5248786431989 - 2²⁴ = 5248769654773 is a prime.

It is a super-2 number, since 2×5248786431989² (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 (5248786431983) 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, 2624393215994 + 2624393215995.

It is an arithmetic number, because the mean of its divisors is an integer number (2624393215995).

Almost surely, 2^{5248786431989} is an apocalyptic number.

It is an amenable number.

5248786431989 is a deficient number, since it is larger than the sum of its proper divisors (1).

5248786431989 is an equidigital number, since it uses as much as digits as its factorization.

5248786431989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 836075520, while the sum is 74.

The spelling of 5248786431989 in words is "five trillion, two hundred forty-eight billion, seven hundred eighty-six million, four hundred thirty-one thousand, nine hundred eighty-nine".