5263688987 has 2 divisors, whose sum is σ = 5263688988. Its totient is φ = 5263688986.

The previous prime is 5263688981. The next prime is 5263689007. The reversal of 5263688987 is 7898863625.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5263688987 - 2¹⁰ = 5263687963 is a prime.

It is not a weakly prime, because it can be changed into another prime (5263688981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2631844493 + 2631844494.

It is an arithmetic number, because the mean of its divisors is an integer number (2631844494).

Almost surely, 2^5263688987 is an apocalyptic number.

5263688987 is a deficient number, since it is larger than the sum of its proper divisors (1).

5263688987 is an equidigital number, since it uses as much as digits as its factorization.

5263688987 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34836480, while the sum is 62.

The square root of 5263688987 is about 72551.2852194915. The cubic root of 5263688987 is about 1739.5225918631.

The spelling of 5263688987 in words is "five billion, two hundred sixty-three million, six hundred eighty-eight thousand, nine hundred eighty-seven".