27408381178134 has 16 divisors (see below), whose sum is σ = 59800104388800. Its totient is φ = 8305570053960.

The previous prime is 27408381178133. The next prime is 27408381178141. The reversal of 27408381178134 is 43187118380472.

It is a super-2 number, since 2×27408381178134² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27408381178133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 207639251284 + ... + 207639251415.

It is an arithmetic number, because the mean of its divisors is an integer number (3737506524300).

Almost surely, 2^{27408381178134} is an apocalyptic number.

27408381178134 is an abundant number, since it is smaller than the sum of its proper divisors (32391723210666).

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

27408381178134 is a wasteful number, since it uses less digits than its factorization.

27408381178134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415278502715.

The product of its (nonzero) digits is 7225344, while the sum is 57.

The spelling of 27408381178134 in words is "twenty-seven trillion, four hundred eight billion, three hundred eighty-one million, one hundred seventy-eight thousand, one hundred thirty-four".