27154569061 has 2 divisors, whose sum is σ = 27154569062. Its totient is φ = 27154569060.

The previous prime is 27154569059. The next prime is 27154569107. The reversal of 27154569061 is 16096545172.

It is an a-pointer prime, because the next prime (27154569107) can be obtained adding 27154569061 to its sum of digits (46).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14419446561 + 12735122500 = 120081^2 + 112850^2 .

It is a cyclic number.

It is not a de Polignac number, because 27154569061 - 2¹ = 27154569059 is a prime.

Together with 27154569059, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27154569031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13577284530 + 13577284531.

It is an arithmetic number, because the mean of its divisors is an integer number (13577284531).

Almost surely, 2^27154569061 is an apocalyptic number.

It is an amenable number.

27154569061 is a deficient number, since it is larger than the sum of its proper divisors (1).

27154569061 is an equidigital number, since it uses as much as digits as its factorization.

27154569061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 453600, while the sum is 46.

The spelling of 27154569061 in words is "twenty-seven billion, one hundred fifty-four million, five hundred sixty-nine thousand, sixty-one".