9951440093 has 16 divisors (see below), whose sum is σ = 12045479040. Its totient is φ = 8025785856.

The previous prime is 9951440087. The next prime is 9951440101. The reversal of 9951440093 is 3900441599.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 9951440093 - 2⁸ = 9951439837 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9951440003) 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, 506705 + ... + 525977.

It is an arithmetic number, because the mean of its divisors is an integer number (752842440).

Almost surely, 2^9951440093 is an apocalyptic number.

It is an amenable number.

9951440093 is a deficient number, since it is larger than the sum of its proper divisors (2094038947).

9951440093 is a wasteful number, since it uses less digits than its factorization.

9951440093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23636.

The product of its (nonzero) digits is 174960, while the sum is 44.

The square root of 9951440093 is about 99756.9049890783. The cubic root of 9951440093 is about 2150.9417250411.

The spelling of 9951440093 in words is "nine billion, nine hundred fifty-one million, four hundred forty thousand, ninety-three".