131778958558 has 8 divisors (see below), whose sum is σ = 212873702328. Its totient is φ = 60821057784.

The previous prime is 131778958543. The next prime is 131778958583. The reversal of 131778958558 is 855859877131.

131778958558 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a junction number, because it is equal to n+sod(n) for n = 131778958493 and 131778958502.

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, 2534210716 + ... + 2534210767.

It is an arithmetic number, because the mean of its divisors is an integer number (26609212791).

Almost surely, 2^131778958558 is an apocalyptic number.

131778958558 is a deficient number, since it is larger than the sum of its proper divisors (81094743770).

131778958558 is a wasteful number, since it uses less digits than its factorization.

131778958558 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5068421498.

The product of its digits is 84672000, while the sum is 67.

The spelling of 131778958558 in words is "one hundred thirty-one billion, seven hundred seventy-eight million, nine hundred fifty-eight thousand, five hundred fifty-eight".