27004781138 has 16 divisors (see below), whose sum is σ = 41456390976. Its totient is φ = 13186093200.

The previous prime is 27004781107. The next prime is 27004781143. The reversal of 27004781138 is 83118740072.

It is a super-2 number, since 2×27004781138² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 27004781095 and 27004781104.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 539420 + ... + 587352.

It is an arithmetic number, because the mean of its divisors is an integer number (2591024436).

Almost surely, 2^27004781138 is an apocalyptic number.

27004781138 is a deficient number, since it is larger than the sum of its proper divisors (14451609838).

27004781138 is a wasteful number, since it uses less digits than its factorization.

27004781138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54529.

The product of its (nonzero) digits is 75264, while the sum is 41.

The spelling of 27004781138 in words is "twenty-seven billion, four million, seven hundred eighty-one thousand, one hundred thirty-eight".