995988737443 has 4 divisors (see below), whose sum is σ = 1138272842800. Its totient is φ = 853704632088.

The previous prime is 995988737417. The next prime is 995988737449. The reversal of 995988737443 is 344737889599.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 344737889599 = 53 ⋅6504488483.

It is a de Polignac number, because none of the positive numbers 2^k-995988737443 is a prime.

It is a super-2 number, since 2×995988737443² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 995988737443.

It is not an unprimeable number, because it can be changed into a prime (995988737449) 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, 71142052668 + ... + 71142052681.

It is an arithmetic number, because the mean of its divisors is an integer number (284568210700).

Almost surely, 2^995988737443 is an apocalyptic number.

995988737443 is a deficient number, since it is larger than the sum of its proper divisors (142284105357).

995988737443 is a wasteful number, since it uses less digits than its factorization.

995988737443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142284105356.

The product of its digits is 1646023680, while the sum is 76.

The spelling of 995988737443 in words is "nine hundred ninety-five billion, nine hundred eighty-eight million, seven hundred thirty-seven thousand, four hundred forty-three".