27747553755 has 16 divisors (see below), whose sum is σ = 44835653664. Its totient is φ = 14652172800.

The previous prime is 27747553751. The next prime is 27747553781. The reversal of 27747553755 is 55735574772.

It is not a de Polignac number, because 27747553755 - 2² = 27747553751 is a prime.

It is a super-2 number, since 2×27747553755² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 27747553695 and 27747553704.

It is not an unprimeable number, because it can be changed into a prime (27747553751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9156094 + ... + 9159123.

It is an arithmetic number, because the mean of its divisors is an integer number (2802228354).

Almost surely, 2^27747553755 is an apocalyptic number.

27747553755 is a deficient number, since it is larger than the sum of its proper divisors (17088099909).

27747553755 is a wasteful number, since it uses less digits than its factorization.

27747553755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18315326.

The product of its digits is 36015000, while the sum is 57.

The spelling of 27747553755 in words is "twenty-seven billion, seven hundred forty-seven million, five hundred fifty-three thousand, seven hundred fifty-five".