27156332907 has 12 divisors (see below), whose sum is σ = 42791797464. Its totient is φ = 16458383520.

The previous prime is 27156332893. The next prime is 27156332927. The reversal of 27156332907 is 70923365172.

27156332907 is a `hidden beast` number, since 2 + 7 + 1 + 5 + 633 + 2 + 9 + 0 + 7 = 666.

It is not a de Polignac number, because 27156332907 - 2¹⁰ = 27156331883 is a prime.

It is a super-2 number, since 2×27156332907² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (27156332927) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 137153098 + ... + 137153295.

It is an arithmetic number, because the mean of its divisors is an integer number (3565983122).

Almost surely, 2^27156332907 is an apocalyptic number.

27156332907 is a deficient number, since it is larger than the sum of its proper divisors (15635464557).

27156332907 is a wasteful number, since it uses less digits than its factorization.

27156332907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274306410 (or 274306407 counting only the distinct ones).

The product of its (nonzero) digits is 476280, while the sum is 45.

It can be divided in two parts, 27156 and 332907, that added together give a palindrome (360063).

The spelling of 27156332907 in words is "twenty-seven billion, one hundred fifty-six million, three hundred thirty-two thousand, nine hundred seven".