27228867017551 has 2 divisors, whose sum is σ = 27228867017552. Its totient is φ = 27228867017550.

The previous prime is 27228867017459. The next prime is 27228867017581. The reversal of 27228867017551 is 15571076882272.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27228867017551 - 2⁷ = 27228867017423 is a prime.

It is a super-2 number, since 2×27228867017551² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 27228867017551.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27228867017581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13614433508775 + 13614433508776.

It is an arithmetic number, because the mean of its divisors is an integer number (13614433508776).

Almost surely, 2^{27228867017551} is an apocalyptic number.

27228867017551 is a deficient number, since it is larger than the sum of its proper divisors (1).

27228867017551 is an equidigital number, since it uses as much as digits as its factorization.

27228867017551 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 26342400, while the sum is 61.

The spelling of 27228867017551 in words is "twenty-seven trillion, two hundred twenty-eight billion, eight hundred sixty-seven million, seventeen thousand, five hundred fifty-one".