131440436463 has 24 divisors (see below), whose sum is σ = 206738179200. Its totient is φ = 74050944240.

The previous prime is 131440436441. The next prime is 131440436527. The reversal of 131440436463 is 364634044131.

It is not a de Polignac number, because 131440436463 - 2⁵ = 131440436431 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131440436063) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6286413 + ... + 6307286.

It is an arithmetic number, because the mean of its divisors is an integer number (8614090800).

Almost surely, 2^131440436463 is an apocalyptic number.

131440436463 is a deficient number, since it is larger than the sum of its proper divisors (75297742737).

131440436463 is a wasteful number, since it uses less digits than its factorization.

131440436463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12593787 (or 12593780 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 39.

The spelling of 131440436463 in words is "one hundred thirty-one billion, four hundred forty million, four hundred thirty-six thousand, four hundred sixty-three".