28634420700427 has 2 divisors, whose sum is σ = 28634420700428. Its totient is φ = 28634420700426.

The previous prime is 28634420700419. The next prime is 28634420700461. The reversal of 28634420700427 is 72400702443682.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28634420700427 - 2³ = 28634420700419 is a prime.

It is not a weakly prime, because it can be changed into another prime (28634420700407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14317210350213 + 14317210350214.

It is an arithmetic number, because the mean of its divisors is an integer number (14317210350214).

Almost surely, 2^{28634420700427} is an apocalyptic number.

28634420700427 is a deficient number, since it is larger than the sum of its proper divisors (1).

28634420700427 is an equidigital number, since it uses as much as digits as its factorization.

28634420700427 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3612672, while the sum is 49.

The spelling of 28634420700427 in words is "twenty-eight trillion, six hundred thirty-four billion, four hundred twenty million, seven hundred thousand, four hundred twenty-seven".