9599944499958 has 16 divisors (see below), whose sum is σ = 19216397946816. Its totient is φ = 3197230008840.

The previous prime is 9599944499939. The next prime is 9599944499963. The reversal of 9599944499958 is 8599944499959.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 687865228 + ... + 687879183.

It is an arithmetic number, because the mean of its divisors is an integer number (1201024871676).

Almost surely, 2^{9599944499958} is an apocalyptic number.

9599944499958 is an abundant number, since it is smaller than the sum of its proper divisors (9616453446858).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9599944499958 is a wasteful number, since it uses less digits than its factorization.

9599944499958 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1375745579.

The product of its digits is 61222003200, while the sum is 93.

Subtracting from 9599944499958 its reverse (8599944499959), we obtain a palindrome (999999999999).

The spelling of 9599944499958 in words is "nine trillion, five hundred ninety-nine billion, nine hundred forty-four million, four hundred ninety-nine thousand, nine hundred fifty-eight".