27774156141 has 6 divisors (see below), whose sum is σ = 40118225550. Its totient is φ = 18516104088.

The previous prime is 27774156139. The next prime is 27774156143. The reversal of 27774156141 is 14165147772.

27774156141 is a `hidden beast` number, since 2 + 7 + 7 + 7 + 41 + 561 + 41 = 666.

It is an interprime number because it is at equal distance from previous prime (27774156139) and next prime (27774156143).

It can be written as a sum of positive squares in only one way, i.e., 27121149225 + 653006916 = 164685^2 + 25554^2 .

It is not a de Polignac number, because 27774156141 - 2¹ = 27774156139 is a prime.

It is a super-3 number, since 3×27774156141³ (a number of 32 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27774156143) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1543008666 + ... + 1543008683.

It is an arithmetic number, because the mean of its divisors is an integer number (6686370925).

Almost surely, 2^27774156141 is an apocalyptic number.

It is an amenable number.

27774156141 is a deficient number, since it is larger than the sum of its proper divisors (12344069409).

27774156141 is a wasteful number, since it uses less digits than its factorization.

27774156141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3086017355 (or 3086017352 counting only the distinct ones).

The product of its digits is 329280, while the sum is 45.

The spelling of 27774156141 in words is "twenty-seven billion, seven hundred seventy-four million, one hundred fifty-six thousand, one hundred forty-one".