5261185868 has 12 divisors (see below), whose sum is σ = 9209872560. Its totient is φ = 2629793712.

The previous prime is 5261185841. The next prime is 5261185877. The reversal of 5261185868 is 8685811625.

It is a happy number.

It is a hoax number, since the sum of its digits (50) coincides with the sum of the digits of its distinct prime factors.

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 3 ways as a sum of consecutive naturals, for example, 184871 + ... + 211422.

It is an arithmetic number, because the mean of its divisors is an integer number (767489380).

Almost surely, 2^5261185868 is an apocalyptic number.

It is an amenable number.

5261185868 is a deficient number, since it is larger than the sum of its proper divisors (3948686692).

5261185868 is a wasteful number, since it uses less digits than its factorization.

5261185868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399616 (or 399614 counting only the distinct ones).

The product of its digits is 921600, while the sum is 50.

The square root of 5261185868 is about 72534.0324813118. The cubic root of 5261185868 is about 1739.2468079370.

The spelling of 5261185868 in words is "five billion, two hundred sixty-one million, one hundred eighty-five thousand, eight hundred sixty-eight".