131482378577 has 16 divisors (see below), whose sum is σ = 146296471680. Its totient is φ = 117164611200.

The previous prime is 131482378493. The next prime is 131482378607. The reversal of 131482378577 is 775873284131.

It is a cyclic number.

It is not a de Polignac number, because 131482378577 - 2²⁸ = 131213943121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131482378177) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 351452 + ... + 621677.

It is an arithmetic number, because the mean of its divisors is an integer number (9143529480).

Almost surely, 2^131482378577 is an apocalyptic number.

It is an amenable number.

131482378577 is a deficient number, since it is larger than the sum of its proper divisors (14814093103).

131482378577 is a wasteful number, since it uses less digits than its factorization.

131482378577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 973384.

The product of its digits is 7902720, while the sum is 56.

The spelling of 131482378577 in words is "one hundred thirty-one billion, four hundred eighty-two million, three hundred seventy-eight thousand, five hundred seventy-seven".