1988927907072 has 72 divisors (see below), whose sum is σ = 5293699430880. Its totient is φ = 662944573440.

The previous prime is 1988927906963. The next prime is 1988927907077. The reversal of 1988927907072 is 2707097298891.

It is a super-2 number, since 2×1988927907072² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1988927906988 and 1988927907006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1988927907077) 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, 20771947 + ... + 20867477.

Almost surely, 2^{1988927907072} is an apocalyptic number.

1988927907072 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1988927907072 is an abundant number, since it is smaller than the sum of its proper divisors (3304771523808).

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

1988927907072 is an equidigital number, since it uses as much as digits as its factorization.

1988927907072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122659 (or 122645 counting only the distinct ones).

The product of its (nonzero) digits is 64012032, while the sum is 69.

The spelling of 1988927907072 in words is "one trillion, nine hundred eighty-eight billion, nine hundred twenty-seven million, nine hundred seven thousand, seventy-two".