1447054640640 has 1920 divisors, whose sum is σ = 6381555840000. Its totient is φ = 309013512192.

The previous prime is 1447054640579. The next prime is 1447054640653. The reversal of 1447054640640 is 460464507441.

1447054640640 is a `hidden beast` number, since 1 + 4 + 4 + 7 + 0 + 546 + 40 + 64 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (1920).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 7271631261 + ... + 7271631459.

It is an arithmetic number, because the mean of its divisors is an integer number (3323727000).

Almost surely, 2^{1447054640640} is an apocalyptic number.

1447054640640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1447054640640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3190777920000).

1447054640640 is an abundant number, since it is smaller than the sum of its proper divisors (4934501199360).

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

1447054640640 is a wasteful number, since it uses less digits than its factorization.

1447054640640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377 (or 348 counting only the distinct ones).

The product of its (nonzero) digits is 1290240, while the sum is 45.

The spelling of 1447054640640 in words is "one trillion, four hundred forty-seven billion, fifty-four million, six hundred forty thousand, six hundred forty".