5246785391 has 2 divisors, whose sum is σ = 5246785392. Its totient is φ = 5246785390.

The previous prime is 5246785367. The next prime is 5246785399. The reversal of 5246785391 is 1935876425.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5246785391 is a prime.

It is a super-3 number, since 3×5246785391³ (a number of 30 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5246785399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2623392695 + 2623392696.

It is an arithmetic number, because the mean of its divisors is an integer number (2623392696).

Almost surely, 2^5246785391 is an apocalyptic number.

5246785391 is a deficient number, since it is larger than the sum of its proper divisors (1).

5246785391 is an equidigital number, since it uses as much as digits as its factorization.

5246785391 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1814400, while the sum is 50.

The square root of 5246785391 is about 72434.6974246459. The cubic root of 5246785391 is about 1737.6585177460.

The spelling of 5246785391 in words is "five billion, two hundred forty-six million, seven hundred eighty-five thousand, three hundred ninety-one".