131593239477 has 48 divisors (see below), whose sum is σ = 224874000000. Its totient is φ = 72554735232.

The previous prime is 131593239433. The next prime is 131593239523. The reversal of 131593239477 is 774932395131.

131593239477 is a `hidden beast` number, since 1 + 3 + 1 + 593 + 2 + 3 + 9 + 47 + 7 = 666.

It is not a de Polignac number, because 131593239477 - 2²³ = 131584850869 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131593239977) 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, 2806774 + ... + 2853272.

It is an arithmetic number, because the mean of its divisors is an integer number (4684875000).

Almost surely, 2^131593239477 is an apocalyptic number.

It is an amenable number.

131593239477 is a deficient number, since it is larger than the sum of its proper divisors (93280760523).

131593239477 is a wasteful number, since it uses less digits than its factorization.

131593239477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48090 (or 48087 counting only the distinct ones).

The product of its digits is 4286520, while the sum is 54.

The spelling of 131593239477 in words is "one hundred thirty-one billion, five hundred ninety-three million, two hundred thirty-nine thousand, four hundred seventy-seven".