9951158444 has 12 divisors (see below), whose sum is σ = 17438752800. Its totient is φ = 4968657648.

The previous prime is 9951158443. The next prime is 9951158453. The reversal of 9951158444 is 4448511599.

It is a happy number.

It is a super-2 number, since 2×9951158444² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 9951158392 and 9951158401.

It is not an unprimeable number, because it can be changed into a prime (9951158443) 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, 1727159 + ... + 1732910.

It is an arithmetic number, because the mean of its divisors is an integer number (1453229400).

Almost surely, 2^9951158444 is an apocalyptic number.

It is an amenable number.

9951158444 is a deficient number, since it is larger than the sum of its proper divisors (7487594356).

9951158444 is a wasteful number, since it uses less digits than its factorization.

9951158444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3460792 (or 3460790 counting only the distinct ones).

The product of its digits is 1036800, while the sum is 50.

The square root of 9951158444 is about 99755.4933023741. The cubic root of 9951158444 is about 2150.9214326246.

The spelling of 9951158444 in words is "nine billion, nine hundred fifty-one million, one hundred fifty-eight thousand, four hundred forty-four".