27229153837 has 2 divisors, whose sum is σ = 27229153838. Its totient is φ = 27229153836.

The previous prime is 27229153703. The next prime is 27229153841. The reversal of 27229153837 is 73835192272.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19058078601 + 8171075236 = 138051^2 + 90394^2 .

It is a cyclic number.

It is not a de Polignac number, because 27229153837 - 2³¹ = 25081670189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27229153537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13614576918 + 13614576919.

It is an arithmetic number, because the mean of its divisors is an integer number (13614576919).

Almost surely, 2^27229153837 is an apocalyptic number.

It is an amenable number.

27229153837 is a deficient number, since it is larger than the sum of its proper divisors (1).

27229153837 is an equidigital number, since it uses as much as digits as its factorization.

27229153837 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1270080, while the sum is 49.

The spelling of 27229153837 in words is "twenty-seven billion, two hundred twenty-nine million, one hundred fifty-three thousand, eight hundred thirty-seven".