5198618437 has 4 divisors (see below), whose sum is σ = 5339121676. Its totient is φ = 5058115200.

The previous prime is 5198618417. The next prime is 5198618459. The reversal of 5198618437 is 7348168915.

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

It can be written as a sum of positive squares in 2 ways, for example, as 4404844161 + 793774276 = 66369^2 + 28174^2 .

It is a cyclic number.

It is not a de Polignac number, because 5198618437 - 2¹⁹ = 5198094149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5198618417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70251564 + ... + 70251637.

It is an arithmetic number, because the mean of its divisors is an integer number (1334780419).

Almost surely, 2^5198618437 is an apocalyptic number.

It is an amenable number.

5198618437 is a deficient number, since it is larger than the sum of its proper divisors (140503239).

5198618437 is a wasteful number, since it uses less digits than its factorization.

5198618437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140503238.

The product of its digits is 1451520, while the sum is 52.

The square root of 5198618437 is about 72101.4454570780. The cubic root of 5198618437 is about 1732.3247658228.

The spelling of 5198618437 in words is "five billion, one hundred ninety-eight million, six hundred eighteen thousand, four hundred thirty-seven".