538158674178 has 24 divisors (see below), whose sum is σ = 1166024386800. Its totient is φ = 179384082264.

The previous prime is 538158674171. The next prime is 538158674189. The reversal of 538158674178 is 871476851835.

538158674178 is a `hidden beast` number, since 5 + 3 + 8 + 1 + 586 + 7 + 41 + 7 + 8 = 666.

It is a super-2 number, since 2×538158674178² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (538158674171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2301553 + ... + 2524571.

It is an arithmetic number, because the mean of its divisors is an integer number (48584349450).

Almost surely, 2^538158674178 is an apocalyptic number.

538158674178 is an abundant number, since it is smaller than the sum of its proper divisors (627865712622).

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

538158674178 is a wasteful number, since it uses less digits than its factorization.

538158674178 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357086 (or 357083 counting only the distinct ones).

The product of its digits is 45158400, while the sum is 63.

The spelling of 538158674178 in words is "five hundred thirty-eight billion, one hundred fifty-eight million, six hundred seventy-four thousand, one hundred seventy-eight".