27542009077 has 16 divisors (see below), whose sum is σ = 32553081792. Its totient is φ = 23017317120.

The previous prime is 27542009069. The next prime is 27542009081. The reversal of 27542009077 is 77090024572.

It is a cyclic number.

It is not a de Polignac number, because 27542009077 - 2³ = 27542009069 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27542009017) 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, 1704558 + ... + 1720639.

It is an arithmetic number, because the mean of its divisors is an integer number (2034567612).

Almost surely, 2^27542009077 is an apocalyptic number.

It is an amenable number.

27542009077 is a deficient number, since it is larger than the sum of its proper divisors (5011072715).

27542009077 is a wasteful number, since it uses less digits than its factorization.

27542009077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3425268.

The product of its (nonzero) digits is 246960, while the sum is 43.

The spelling of 27542009077 in words is "twenty-seven billion, five hundred forty-two million, nine thousand, seventy-seven".