5398816018 has 4 divisors (see below), whose sum is σ = 8098224030. Its totient is φ = 2699408008.

The previous prime is 5398815979. The next prime is 5398816051. The reversal of 5398816018 is 8106188935.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 5210385489 + 188430529 = 72183^2 + 13727^2 .

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1349704003 + ... + 1349704006.

Almost surely, 2^5398816018 is an apocalyptic number.

5398816018 is a deficient number, since it is larger than the sum of its proper divisors (2699408012).

5398816018 is a wasteful number, since it uses less digits than its factorization.

5398816018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2699408011.

The product of its (nonzero) digits is 414720, while the sum is 49.

The square root of 5398816018 is about 73476.6358647427. The cubic root of 5398816018 is about 1754.2824119121.

The spelling of 5398816018 in words is "five billion, three hundred ninety-eight million, eight hundred sixteen thousand, eighteen".