1425805806744 has 576 divisors, whose sum is σ = 4541750478720. Its totient is φ = 418476326400.

The previous prime is 1425805806743. The next prime is 1425805806773. The reversal of 1425805806744 is 4476085085241.

1425805806744 is a `hidden beast` number, since 1 + 4 + 2 + 58 + 0 + 580 + 6 + 7 + 4 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1425805806743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 1572001539 + ... + 1572002445.

It is an arithmetic number, because the mean of its divisors is an integer number (7884983470).

Almost surely, 2^{1425805806744} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1425805806744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2270875239360).

1425805806744 is an abundant number, since it is smaller than the sum of its proper divisors (3115944671976).

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

1425805806744 is a wasteful number, since it uses less digits than its factorization.

1425805806744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1154 (or 1127 counting only the distinct ones).

The product of its (nonzero) digits is 8601600, while the sum is 54.

The spelling of 1425805806744 in words is "one trillion, four hundred twenty-five billion, eight hundred five million, eight hundred six thousand, seven hundred forty-four".