99944500140425 has 6 divisors (see below), whose sum is σ = 123931180174158. Its totient is φ = 79955600112320.

The previous prime is 99944500140421. The next prime is 99944500140439. The reversal of 99944500140425 is 52404100544999.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 2839656376384 + 97104843764041 = 1685128^2 + 9854179^2 .

It is not a de Polignac number, because 99944500140425 - 2² = 99944500140421 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99944500140421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1998890002784 + ... + 1998890002833.

It is an arithmetic number, because the mean of its divisors is an integer number (20655196695693).

Almost surely, 2^{99944500140425} is an apocalyptic number.

It is an amenable number.

99944500140425 is a deficient number, since it is larger than the sum of its proper divisors (23986680033733).

99944500140425 is a wasteful number, since it uses less digits than its factorization.

99944500140425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3997780005627 (or 3997780005622 counting only the distinct ones).

The product of its (nonzero) digits is 9331200, while the sum is 56.

The spelling of 99944500140425 in words is "ninety-nine trillion, nine hundred forty-four billion, five hundred million, one hundred forty thousand, four hundred twenty-five".