27773023147 has 2 divisors, whose sum is σ = 27773023148. Its totient is φ = 27773023146.

The previous prime is 27773023141. The next prime is 27773023183. The reversal of 27773023147 is 74132037772.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27773023147 is a prime.

It is not a weakly prime, because it can be changed into another prime (27773023141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13886511573 + 13886511574.

It is an arithmetic number, because the mean of its divisors is an integer number (13886511574).

Almost surely, 2^27773023147 is an apocalyptic number.

27773023147 is a deficient number, since it is larger than the sum of its proper divisors (1).

27773023147 is an equidigital number, since it uses as much as digits as its factorization.

27773023147 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 345744, while the sum is 43.

The spelling of 27773023147 in words is "twenty-seven billion, seven hundred seventy-three million, twenty-three thousand, one hundred forty-seven".