2489438444850 has 144 divisors (see below), whose sum is σ = 7830195085440. Its totient is φ = 555136070400.

The previous prime is 2489438444819. The next prime is 2489438444861. The reversal of 2489438444850 is 584448349842.

It is a happy number.

2489438444850 is a `hidden beast` number, since 2 + 4 + 89 + 4 + 38 + 44 + 485 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 9508630 + ... + 9766929.

It is an arithmetic number, because the mean of its divisors is an integer number (54376354760).

Almost surely, 2^{2489438444850} is an apocalyptic number.

2489438444850 is an abundant number, since it is smaller than the sum of its proper divisors (5340756640590).

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

2489438444850 is a wasteful number, since it uses less digits than its factorization.

2489438444850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19275625 (or 19275617 counting only the distinct ones).

The product of its (nonzero) digits is 141557760, while the sum is 63.

The spelling of 2489438444850 in words is "two trillion, four hundred eighty-nine billion, four hundred thirty-eight million, four hundred forty-four thousand, eight hundred fifty".