1944406629072 has 100 divisors (see below), whose sum is σ = 5627971352256. Its totient is φ = 648101632320.

The previous prime is 1944406629071. The next prime is 1944406629101. The reversal of 1944406629072 is 2709266044491.

1944406629072 is a `hidden beast` number, since 1 + 9 + 4 + 4 + 4 + 0 + 6 + 629 + 0 + 7 + 2 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1944406629071) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 42629863 + ... + 42675449.

Almost surely, 2^{1944406629072} is an apocalyptic number.

1944406629072 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1944406629072 is an abundant number, since it is smaller than the sum of its proper divisors (3683564723184).

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

1944406629072 is a wasteful number, since it uses less digits than its factorization.

1944406629072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78518 (or 78503 counting only the distinct ones).

The product of its (nonzero) digits is 5225472, while the sum is 54.

The spelling of 1944406629072 in words is "one trillion, nine hundred forty-four billion, four hundred six million, six hundred twenty-nine thousand, seventy-two".