5186838650 has 36 divisors (see below), whose sum is σ = 11222630478. Its totient is φ = 1778343840.

The previous prime is 5186838641. The next prime is 5186838659. The reversal of 5186838650 is 568386815.

It is an interprime number because it is at equal distance from previous prime (5186838641) and next prime (5186838659).

It can be written as a sum of positive squares in 3 ways, for example, as 3694329961 + 1492508689 = 60781^2 + 38633^2 .

It is a super-2 number, since 2×5186838650² = 53806590362267645000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (50).

It is not an unprimeable number, because it can be changed into a prime (5186838659) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1056089 + ... + 1060988.

Almost surely, 2^5186838650 is an apocalyptic number.

5186838650 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

5186838650 is an abundant number, since it is smaller than the sum of its proper divisors (6035791828).

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

5186838650 is a wasteful number, since it uses less digits than its factorization.

5186838650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2117103 (or 2117091 counting only the distinct ones).

The product of its (nonzero) digits is 1382400, while the sum is 50.

The square root of 5186838650 is about 72019.7101493751. The cubic root of 5186838650 is about 1731.0153250093.

The spelling of 5186838650 in words is "five billion, one hundred eighty-six million, eight hundred thirty-eight thousand, six hundred fifty".