131963506389 has 48 divisors (see below), whose sum is σ = 224168031360. Its totient is φ = 73749928320.

The previous prime is 131963506351. The next prime is 131963506421. The reversal of 131963506389 is 983605369131.

131963506389 is a `hidden beast` number, since 13 + 1 + 96 + 3 + 506 + 38 + 9 = 666.

It is not a de Polignac number, because 131963506389 - 2⁷ = 131963506261 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131963505389) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1212967 + ... + 1317275.

It is an arithmetic number, because the mean of its divisors is an integer number (4670167320).

Almost surely, 2^131963506389 is an apocalyptic number.

It is an amenable number.

131963506389 is a deficient number, since it is larger than the sum of its proper divisors (92204524971).

131963506389 is a wasteful number, since it uses less digits than its factorization.

131963506389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105322 (or 105319 counting only the distinct ones).

The product of its (nonzero) digits is 3149280, while the sum is 54.

The spelling of 131963506389 in words is "one hundred thirty-one billion, nine hundred sixty-three million, five hundred six thousand, three hundred eighty-nine".