999976000144 has 45 divisors (see below), whose sum is σ = 2129691356611. Its totient is φ = 454514545760.

The previous prime is 999976000141. The next prime is 999976000157. The reversal of 999976000144 is 441000679999.

The square root of 999976000144 is 999988.

It is a perfect power (a square), and thus also a powerful number.

999976000144 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (999976000141) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 43988109 + ... + 44010835.

Almost surely, 2^999976000144 is an apocalyptic number.

999976000144 is the 999988-th square number.

It is an amenable number.

999976000144 is an abundant number, since it is smaller than the sum of its proper divisors (1129715356467).

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

999976000144 is an frugal number, since it uses more digits than its factorization.

999976000144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45484 (or 22740 counting only the distinct ones).

The product of its (nonzero) digits is 4408992, while the sum is 58.

The spelling of 999976000144 in words is "nine hundred ninety-nine billion, nine hundred seventy-six million, one hundred forty-four", and thus it is an aban number.