28214653757 has 2 divisors, whose sum is σ = 28214653758. Its totient is φ = 28214653756.

The previous prime is 28214653741. The next prime is 28214653759. The reversal of 28214653757 is 75735641282.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24085177636 + 4129476121 = 155194^2 + 64261^2 .

It is a cyclic number.

It is not a de Polignac number, because 28214653757 - 2⁴ = 28214653741 is a prime.

Together with 28214653759, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28214653759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14107326878 + 14107326879.

It is an arithmetic number, because the mean of its divisors is an integer number (14107326879).

Almost surely, 2^28214653757 is an apocalyptic number.

It is an amenable number.

28214653757 is a deficient number, since it is larger than the sum of its proper divisors (1).

28214653757 is an equidigital number, since it uses as much as digits as its factorization.

28214653757 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2822400, while the sum is 50.

The spelling of 28214653757 in words is "twenty-eight billion, two hundred fourteen million, six hundred fifty-three thousand, seven hundred fifty-seven".