1945944184608 has 72 divisors (see below), whose sum is σ = 5774377871808. Its totient is φ = 620445969792.

The previous prime is 1945944184589. The next prime is 1945944184619. The reversal of 1945944184608 is 8064814495491.

1945944184608 is a `hidden beast` number, since 1 + 9 + 4 + 5 + 9 + 4 + 4 + 18 + 4 + 608 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a super-2 number, since 2×1945944184608² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 146879260 + ... + 146892507.

It is an arithmetic number, because the mean of its divisors is an integer number (80199692664).

Almost surely, 2^{1945944184608} is an apocalyptic number.

1945944184608 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1945944184608 is an abundant number, since it is smaller than the sum of its proper divisors (3828433687200).

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

1945944184608 is a wasteful number, since it uses less digits than its factorization.

1945944184608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293771806 (or 293771795 counting only the distinct ones).

The product of its (nonzero) digits is 39813120, while the sum is 63.

The spelling of 1945944184608 in words is "one trillion, nine hundred forty-five billion, nine hundred forty-four million, one hundred eighty-four thousand, six hundred eight".