27397275507 has 24 divisors (see below), whose sum is σ = 45232462080. Its totient is φ = 15653781360.

The previous prime is 27397275491. The next prime is 27397275509. The reversal of 27397275507 is 70557279372.

27397275507 is a `hidden beast` number, since 27 + 3 + 97 + 27 + 5 + 507 = 666.

It is not a de Polignac number, because 27397275507 - 2⁴ = 27397275491 is a prime.

It is a super-2 number, since 2×27397275507² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (27397275509) 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 23 ways as a sum of consecutive naturals, for example, 683532 + ... + 722502.

It is an arithmetic number, because the mean of its divisors is an integer number (1884685920).

Almost surely, 2^27397275507 is an apocalyptic number.

27397275507 is a deficient number, since it is larger than the sum of its proper divisors (17835186573).

27397275507 is a wasteful number, since it uses less digits than its factorization.

27397275507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50143 (or 50140 counting only the distinct ones).

The product of its (nonzero) digits is 6482700, while the sum is 54.

The spelling of 27397275507 in words is "twenty-seven billion, three hundred ninety-seven million, two hundred seventy-five thousand, five hundred seven".