131780508732 has 18 divisors (see below), whose sum is σ = 333111841608. Its totient is φ = 43926836232.

The previous prime is 131780508703. The next prime is 131780508733. The reversal of 131780508732 is 237805087131.

131780508732 is a `hidden beast` number, since 1 + 3 + 1 + 78 + 0 + 508 + 73 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-3 number, since 3×131780508732³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131780508733) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1830284808 + ... + 1830284879.

Almost surely, 2^131780508732 is an apocalyptic number.

131780508732 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

131780508732 is an abundant number, since it is smaller than the sum of its proper divisors (201331332876).

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

131780508732 is a wasteful number, since it uses less digits than its factorization.

131780508732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3660569697 (or 3660569692 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 45.

The spelling of 131780508732 in words is "one hundred thirty-one billion, seven hundred eighty million, five hundred eight thousand, seven hundred thirty-two".