10028205977 has 2 divisors, whose sum is σ = 10028205978. Its totient is φ = 10028205976.

The previous prime is 10028205961. The next prime is 10028206009. The reversal of 10028205977 is 77950282001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9774090496 + 254115481 = 98864^2 + 15941^2 .

It is a cyclic number.

It is not a de Polignac number, because 10028205977 - 2⁴ = 10028205961 is a prime.

It is not a weakly prime, because it can be changed into another prime (10028205277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5014102988 + 5014102989.

It is an arithmetic number, because the mean of its divisors is an integer number (5014102989).

Almost surely, 2^10028205977 is an apocalyptic number.

It is an amenable number.

10028205977 is a deficient number, since it is larger than the sum of its proper divisors (1).

10028205977 is an equidigital number, since it uses as much as digits as its factorization.

10028205977 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 70560, while the sum is 41.

Adding to 10028205977 its reverse (77950282001), we get a palindrome (87978487978).

The spelling of 10028205977 in words is "ten billion, twenty-eight million, two hundred five thousand, nine hundred seventy-seven".