5260666986 has 20 divisors (see below), whose sum is σ = 11787791202. Its totient is φ = 1753555608.

The previous prime is 5260666937. The next prime is 5260666997. The reversal of 5260666986 is 6896660625.

It can be written as a sum of positive squares in only one way, i.e., 3902375961 + 1358291025 = 62469^2 + 36855^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 16236465 + ... + 16236788.

Almost surely, 2^5260666986 is an apocalyptic number.

5260666986 is an abundant number, since it is smaller than the sum of its proper divisors (6527124216).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5260666986 is a wasteful number, since it uses less digits than its factorization.

5260666986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32473267 (or 32473258 counting only the distinct ones).

The product of its (nonzero) digits is 5598720, while the sum is 54.

The square root of 5260666986 is about 72530.4555755718. The cubic root of 5260666986 is about 1739.1896285891.

The spelling of 5260666986 in words is "five billion, two hundred sixty million, six hundred sixty-six thousand, nine hundred eighty-six".