5188017988 has 18 divisors (see below), whose sum is σ = 9402903146. Its totient is φ = 2504558784.

The previous prime is 5188017949. The next prime is 5188017997. The reversal of 5188017988 is 8897108815.

It can be written as a sum of positive squares in 3 ways, for example, as 1172514564 + 4015503424 = 34242^2 + 63368^2 .

It is a plaindrome in base 11.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 767745 + ... + 774472.

Almost surely, 2^5188017988 is an apocalyptic number.

5188017988 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

It is an amenable number.

5188017988 is a deficient number, since it is larger than the sum of its proper divisors (4214885158).

5188017988 is a wasteful number, since it uses less digits than its factorization.

5188017988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1542279 (or 1542248 counting only the distinct ones).

The product of its (nonzero) digits is 1290240, while the sum is 55.

The square root of 5188017988 is about 72027.8972898696. The cubic root of 5188017988 is about 1731.1465094414.

The spelling of 5188017988 in words is "five billion, one hundred eighty-eight million, seventeen thousand, nine hundred eighty-eight".