1945099908672 has 56 divisors (see below), whose sum is σ = 5148011564256. Its totient is φ = 648164886528.

The previous prime is 1945099908643. The next prime is 1945099908677. The reversal of 1945099908672 is 2768099905491.

It is a junction number, because it is equal to n+sod(n) for n = 1945099908597 and 1945099908606.

It is not an unprimeable number, because it can be changed into a prime (1945099908677) 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, 956898 + ... + 2192225.

Almost surely, 2^{1945099908672} is an apocalyptic number.

1945099908672 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1945099908672 is an abundant number, since it is smaller than the sum of its proper divisors (3202911655584).

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

1945099908672 is a wasteful number, since it uses less digits than its factorization.

1945099908672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3152355 (or 3152345 counting only the distinct ones).

The product of its (nonzero) digits is 88179840, while the sum is 69.

The spelling of 1945099908672 in words is "one trillion, nine hundred forty-five billion, ninety-nine million, nine hundred eight thousand, six hundred seventy-two".