5186387720 has 16 divisors (see below), whose sum is σ = 11669372460. Its totient is φ = 2074555072.

The previous prime is 5186387671. The next prime is 5186387749. The reversal of 5186387720 is 277836815.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 5075422564 + 110965156 = 71242^2 + 10534^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64829807 + ... + 64829886.

Almost surely, 2^5186387720 is an apocalyptic number.

It is an amenable number.

5186387720 is an abundant number, since it is smaller than the sum of its proper divisors (6482984740).

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

5186387720 is a wasteful number, since it uses less digits than its factorization.

5186387720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129659704 (or 129659700 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 47.

The square root of 5186387720 is about 72016.5794800059. The cubic root of 5186387720 is about 1730.9651602613.

The spelling of 5186387720 in words is "five billion, one hundred eighty-six million, three hundred eighty-seven thousand, seven hundred twenty".