1249716988672 has 36 divisors (see below), whose sum is σ = 2541619321920. Its totient is φ = 613068704768.

The previous prime is 1249716988649. The next prime is 1249716988699. The reversal of 1249716988672 is 2768896179421.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46040272 + ... + 46067407.

It is an arithmetic number, because the mean of its divisors is an integer number (70600536720).

Almost surely, 2^{1249716988672} is an apocalyptic number.

It is an amenable number.

1249716988672 is an abundant number, since it is smaller than the sum of its proper divisors (1291902333248).

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

1249716988672 is an frugal number, since it uses more digits than its factorization.

1249716988672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92107748 (or 92107734 counting only the distinct ones).

The product of its digits is 146313216, while the sum is 70.

The spelling of 1249716988672 in words is "one trillion, two hundred forty-nine billion, seven hundred sixteen million, nine hundred eighty-eight thousand, six hundred seventy-two".