1427940556672 has 128 divisors (see below), whose sum is σ = 3260050560000. Its totient is φ = 610295371776.

The previous prime is 1427940556643. The next prime is 1427940556697. The reversal of 1427940556672 is 2766550497241.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 732651954 + ... + 732653902.

It is an arithmetic number, because the mean of its divisors is an integer number (25469145000).

Almost surely, 2^{1427940556672} 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 1427940556672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1630025280000).

1427940556672 is an abundant number, since it is smaller than the sum of its proper divisors (1832110003328).

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

1427940556672 is a wasteful number, since it uses less digits than its factorization.

1427940556672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3796 (or 3784 counting only the distinct ones).

The product of its (nonzero) digits is 25401600, while the sum is 58.

The spelling of 1427940556672 in words is "one trillion, four hundred twenty-seven billion, nine hundred forty million, five hundred fifty-six thousand, six hundred seventy-two".