5263699391 has 4 divisors (see below), whose sum is σ = 5263912512. Its totient is φ = 5263486272.

The previous prime is 5263699379. The next prime is 5263699417. The reversal of 5263699391 is 1939963625.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 5263699391 - 2²² = 5259505087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5263609391) 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 in 3 ways as a sum of consecutive naturals, for example, 63791 + ... + 120816.

It is an arithmetic number, because the mean of its divisors is an integer number (1315978128).

Almost surely, 2^5263699391 is an apocalyptic number.

5263699391 is a deficient number, since it is larger than the sum of its proper divisors (213121).

5263699391 is a wasteful number, since it uses less digits than its factorization.

5263699391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213120.

The product of its digits is 2361960, while the sum is 53.

The square root of 5263699391 is about 72551.3569204601. The cubic root of 5263699391 is about 1739.5237379529.

The spelling of 5263699391 in words is "five billion, two hundred sixty-three million, six hundred ninety-nine thousand, three hundred ninety-one".