5261381886 has 8 divisors (see below), whose sum is σ = 10522763784. Its totient is φ = 1753793960.

The previous prime is 5261381837. The next prime is 5261381887. The reversal of 5261381886 is 6881831625.

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

5261381886 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5261381887) 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, 438448485 + ... + 438448496.

It is an arithmetic number, because the mean of its divisors is an integer number (1315345473).

Almost surely, 2^5261381886 is an apocalyptic number.

5261381886 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

5261381886 is a wasteful number, since it uses less digits than its factorization.

5261381886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 876896986.

The product of its digits is 552960, while the sum is 48.

The square root of 5261381886 is about 72535.3836827241. The cubic root of 5261381886 is about 1739.2684075950.

The spelling of 5261381886 in words is "five billion, two hundred sixty-one million, three hundred eighty-one thousand, eight hundred eighty-six".