1972608912 has 30 divisors (see below), whose sum is σ = 5520565622. Its totient is φ = 657536256.

The previous prime is 1972608863. The next prime is 1972608917. The reversal of 1972608912 is 2198062791.

It can be written as a sum of positive squares in only one way, i.e., 1103302656 + 869306256 = 33216^2 + 29484^2 .

It is not an unprimeable number, because it can be changed into a prime (1972608917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6849193 + ... + 6849480.

Almost surely, 2^1972608912 is an apocalyptic number.

1972608912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1972608912 is an abundant number, since it is smaller than the sum of its proper divisors (3547956710).

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

1972608912 is a wasteful number, since it uses less digits than its factorization.

1972608912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13698687 (or 13698678 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 45.

The square root of 1972608912 is about 44414.0620974934. The cubic root of 1972608912 is about 1254.1428223431.

The spelling of 1972608912 in words is "one billion, nine hundred seventy-two million, six hundred eight thousand, nine hundred twelve".