1945593147984 has 80 divisors (see below), whose sum is σ = 5203665158400. Its totient is φ = 625657865728.

The previous prime is 1945593147977. The next prime is 1945593148007. The reversal of 1945593147984 is 4897413955491.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1142137 + ... + 2279399.

It is an arithmetic number, because the mean of its divisors is an integer number (65045814480).

Almost surely, 2^{1945593147984} 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 1945593147984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2601832579200).

1945593147984 is an abundant number, since it is smaller than the sum of its proper divisors (3258072010416).

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

1945593147984 is a wasteful number, since it uses less digits than its factorization.

1945593147984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1138532 (or 1138526 counting only the distinct ones).

The product of its digits is 195955200, while the sum is 69.

The spelling of 1945593147984 in words is "one trillion, nine hundred forty-five billion, five hundred ninety-three million, one hundred forty-seven thousand, nine hundred eighty-four".