131921488464 has 40 divisors (see below), whose sum is σ = 347227320672. Its totient is φ = 43144133760.

The previous prime is 131921488463. The next prime is 131921488471. The reversal of 131921488464 is 464884129131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131921488463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25925422 + ... + 25930509.

Almost surely, 2^131921488464 is an apocalyptic number.

It is an amenable number.

131921488464 is an abundant number, since it is smaller than the sum of its proper divisors (215305832208).

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

131921488464 is a wasteful number, since it uses less digits than its factorization.

131921488464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51855995 (or 51855989 counting only the distinct ones).

The product of its digits is 1327104, while the sum is 51.

The spelling of 131921488464 in words is "one hundred thirty-one billion, nine hundred twenty-one million, four hundred eighty-eight thousand, four hundred sixty-four".