2131492798989 has 48 divisors (see below), whose sum is σ = 3132835655040. Its totient is φ = 1396223308800.

The previous prime is 2131492798957. The next prime is 2131492798991. The reversal of 2131492798989 is 9898972941312.

It is a happy number.

2131492798989 is a `hidden beast` number, since 2 + 1 + 314 + 92 + 79 + 89 + 89 = 666.

It is not a de Polignac number, because 2131492798989 - 2⁵ = 2131492798957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2131492798289) 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 47 ways as a sum of consecutive naturals, for example, 221035602 + ... + 221045244.

It is an arithmetic number, because the mean of its divisors is an integer number (65267409480).

Almost surely, 2^{2131492798989} is an apocalyptic number.

It is an amenable number.

2131492798989 is a deficient number, since it is larger than the sum of its proper divisors (1001342856051).

2131492798989 is a wasteful number, since it uses less digits than its factorization.

2131492798989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10962 (or 10959 counting only the distinct ones).

The product of its digits is 141087744, while the sum is 72.

The spelling of 2131492798989 in words is "two trillion, one hundred thirty-one billion, four hundred ninety-two million, seven hundred ninety-eight thousand, nine hundred eighty-nine".