131544678782 has 8 divisors (see below), whose sum is σ = 215254928952. Its totient is φ = 59793035800.

The previous prime is 131544678767. The next prime is 131544678809. The reversal of 131544678782 is 287876445131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×131544678782² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2989651769 + ... + 2989651812.

It is an arithmetic number, because the mean of its divisors is an integer number (26906866119).

Almost surely, 2^131544678782 is an apocalyptic number.

131544678782 is a deficient number, since it is larger than the sum of its proper divisors (83710250170).

131544678782 is a wasteful number, since it uses less digits than its factorization.

131544678782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5979303594.

The product of its digits is 9031680, while the sum is 56.

The spelling of 131544678782 in words is "one hundred thirty-one billion, five hundred forty-four million, six hundred seventy-eight thousand, seven hundred eighty-two".