5437999873 has 4 divisors (see below), whose sum is σ = 5625517140. Its totient is φ = 5250482608.

The previous prime is 5437999771. The next prime is 5437999907. The reversal of 5437999873 is 3789997345.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3789997345 = 5 ⋅757999469.

It can be written as a sum of positive squares in 2 ways, for example, as 1404225729 + 4033774144 = 37473^2 + 63512^2 .

It is a cyclic number.

It is not a de Polignac number, because 5437999873 - 2⁹ = 5437999361 is a prime.

It is a super-2 number, since 2×5437999873² = 59143685237496032258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5437999373) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 93758590 + ... + 93758647.

It is an arithmetic number, because the mean of its divisors is an integer number (1406379285).

Almost surely, 2^5437999873 is an apocalyptic number.

It is an amenable number.

5437999873 is a deficient number, since it is larger than the sum of its proper divisors (187517267).

5437999873 is a wasteful number, since it uses less digits than its factorization.

5437999873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187517266.

The product of its digits is 51438240, while the sum is 64.

The square root of 5437999873 is about 73742.7953972454. The cubic root of 5437999873 is about 1758.5162978889.

The spelling of 5437999873 in words is "five billion, four hundred thirty-seven million, nine hundred ninety-nine thousand, eight hundred seventy-three".