1946443815144 has 32 divisors (see below), whose sum is σ = 5406788376000. Its totient is φ = 648814604976.

The previous prime is 1946443815143. The next prime is 1946443815161. The reversal of 1946443815144 is 4415183446491.

1946443815144 is a `hidden beast` number, since 1 + 9 + 4 + 6 + 4 + 43 + 81 + 514 + 4 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (1946443815143) 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 7 ways as a sum of consecutive naturals, for example, 4505656764 + ... + 4505657195.

It is an arithmetic number, because the mean of its divisors is an integer number (168962136750).

Almost surely, 2^{1946443815144} is an apocalyptic number.

It is an amenable number.

1946443815144 is an abundant number, since it is smaller than the sum of its proper divisors (3460344560856).

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

1946443815144 is a wasteful number, since it uses less digits than its factorization.

1946443815144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9011313974 (or 9011313964 counting only the distinct ones).

The product of its digits is 6635520, while the sum is 54.

The spelling of 1946443815144 in words is "one trillion, nine hundred forty-six billion, four hundred forty-three million, eight hundred fifteen thousand, one hundred forty-four".