2131993603472 has 40 divisors (see below), whose sum is σ = 4352182882944. Its totient is φ = 1009749590784.

The previous prime is 2131993603469. The next prime is 2131993603477. The reversal of 2131993603472 is 2743063991312.

It is a self number, because there is not a number n which added to its sum of digits gives 2131993603472.

It is not an unprimeable number, because it can be changed into a prime (2131993603477) 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, 28085693 + ... + 28161500.

Almost surely, 2^{2131993603472} is an apocalyptic number.

It is an amenable number.

2131993603472 is an abundant number, since it is smaller than the sum of its proper divisors (2220189279472).

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

2131993603472 is a wasteful number, since it uses less digits than its factorization.

2131993603472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56247327 (or 56247321 counting only the distinct ones).

The product of its (nonzero) digits is 1469664, while the sum is 50.

The spelling of 2131993603472 in words is "two trillion, one hundred thirty-one billion, nine hundred ninety-three million, six hundred three thousand, four hundred seventy-two".