131724908985 has 16 divisors (see below), whose sum is σ = 210914743680. Its totient is φ = 70201655040.

The previous prime is 131724908891. The next prime is 131724909089. The reversal of 131724908985 is 589809427131.

It is not a de Polignac number, because 131724908985 - 2¹³ = 131724900793 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3205765 + ... + 3246594.

It is an arithmetic number, because the mean of its divisors is an integer number (13182171480).

Almost surely, 2^131724908985 is an apocalyptic number.

131724908985 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

131724908985 is a deficient number, since it is larger than the sum of its proper divisors (79189834695).

131724908985 is a wasteful number, since it uses less digits than its factorization.

131724908985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6453728.

The product of its (nonzero) digits is 4354560, while the sum is 57.

The spelling of 131724908985 in words is "one hundred thirty-one billion, seven hundred twenty-four million, nine hundred eight thousand, nine hundred eighty-five".