28229747627 has 2 divisors, whose sum is σ = 28229747628. Its totient is φ = 28229747626.

The previous prime is 28229747537. The next prime is 28229747633. The reversal of 28229747627 is 72674792282.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28229747627 is a prime.

It is a super-2 number, since 2×28229747627² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (28229747657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14114873813 + 14114873814.

It is an arithmetic number, because the mean of its divisors is an integer number (14114873814).

Almost surely, 2^28229747627 is an apocalyptic number.

28229747627 is a deficient number, since it is larger than the sum of its proper divisors (1).

28229747627 is an equidigital number, since it uses as much as digits as its factorization.

28229747627 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9483264, while the sum is 56.

The spelling of 28229747627 in words is "twenty-eight billion, two hundred twenty-nine million, seven hundred forty-seven thousand, six hundred twenty-seven".