9951044999 has 16 divisors (see below), whose sum is σ = 11648947200. Its totient is φ = 8496958680.

The previous prime is 9951044989. The next prime is 9951045029. The reversal of 9951044999 is 9994401599.

It is not a de Polignac number, because 9951044999 - 2¹² = 9951040903 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 (9951044989) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35054 + ... + 145364.

It is an arithmetic number, because the mean of its divisors is an integer number (728059200).

Almost surely, 2^9951044999 is an apocalyptic number.

9951044999 is a deficient number, since it is larger than the sum of its proper divisors (1697902201).

9951044999 is a wasteful number, since it uses less digits than its factorization.

9951044999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110595 (or 110581 counting only the distinct ones).

The product of its (nonzero) digits is 4723920, while the sum is 59.

The square root of 9951044999 is about 99754.9246854510. The cubic root of 9951044999 is about 2150.9132589629.

The spelling of 9951044999 in words is "nine billion, nine hundred fifty-one million, forty-four thousand, nine hundred ninety-nine".