5187486421 has 8 divisors (see below), whose sum is σ = 5678107064. Its totient is φ = 4709949120.

The previous prime is 5187486413. The next prime is 5187486439. The reversal of 5187486421 is 1246847815.

It can be written as a sum of positive squares in 4 ways, for example, as 148474225 + 5039012196 = 12185^2 + 70986^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 5187486421 - 2³ = 5187486413 is a prime.

It is a Duffinian number.

It is a plaindrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5187486481) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3270006 + ... + 3271591.

It is an arithmetic number, because the mean of its divisors is an integer number (709763383).

Almost surely, 2^5187486421 is an apocalyptic number.

It is an amenable number.

5187486421 is a deficient number, since it is larger than the sum of its proper divisors (490620643).

5187486421 is a wasteful number, since it uses less digits than its factorization.

5187486421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6541671.

The product of its digits is 430080, while the sum is 46.

The square root of 5187486421 is about 72024.2071875838. The cubic root of 5187486421 is about 1731.0873827004.

The spelling of 5187486421 in words is "five billion, one hundred eighty-seven million, four hundred eighty-six thousand, four hundred twenty-one".