5263061866 has 8 divisors (see below), whose sum is σ = 7898286564. Its totient is φ = 2630299680.

The previous prime is 5263061863. The next prime is 5263061873. The reversal of 5263061866 is 6681603625.

It can be written as a sum of positive squares in 2 ways, for example, as 4124336841 + 1138725025 = 64221^2 + 33745^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (5263061863) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 610275 + ... + 618838.

Almost surely, 2^5263061866 is an apocalyptic number.

5263061866 is a deficient number, since it is larger than the sum of its proper divisors (2635224698).

5263061866 is a wasteful number, since it uses less digits than its factorization.

5263061866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1231256.

The product of its (nonzero) digits is 311040, while the sum is 43.

The square root of 5263061866 is about 72546.9631755872. The cubic root of 5263061866 is about 1739.4535063177.

The spelling of 5263061866 in words is "five billion, two hundred sixty-three million, sixty-one thousand, eight hundred sixty-six".