5198651986 has 48 divisors (see below), whose sum is σ = 9141824160. Its totient is φ = 2207779200.

The previous prime is 5198651951. The next prime is 5198651987. The reversal of 5198651986 is 6891568915.

It is a self number, because there is not a number n which added to its sum of digits gives 5198651986.

It is not an unprimeable number, because it can be changed into a prime (5198651987) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 567301 + ... + 576391.

It is an arithmetic number, because the mean of its divisors is an integer number (190454670).

Almost surely, 2^5198651986 is an apocalyptic number.

5198651986 is a deficient number, since it is larger than the sum of its proper divisors (3943172174).

5198651986 is a wasteful number, since it uses less digits than its factorization.

5198651986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9271 (or 9260 counting only the distinct ones).

The product of its digits is 4665600, while the sum is 58.

The square root of 5198651986 is about 72101.6781080718. The cubic root of 5198651986 is about 1732.3284923025.

The spelling of 5198651986 in words is "five billion, one hundred ninety-eight million, six hundred fifty-one thousand, nine hundred eighty-six".