10200000077 has 2 divisors, whose sum is σ = 10200000078. Its totient is φ = 10200000076.

The previous prime is 10200000059. The next prime is 10200000143. The reversal of 10200000077 is 77000000201.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5718233161 + 4481766916 = 75619^2 + 66946^2 .

It is a cyclic number.

It is not a de Polignac number, because 10200000077 - 2¹⁶ = 10199934541 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10200030077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5100000038 + 5100000039.

It is an arithmetic number, because the mean of its divisors is an integer number (5100000039).

Almost surely, 2^10200000077 is an apocalyptic number.

It is an amenable number.

10200000077 is a deficient number, since it is larger than the sum of its proper divisors (1).

10200000077 is an equidigital number, since it uses as much as digits as its factorization.

10200000077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 98, while the sum is 17.

Adding to 10200000077 its reverse (77000000201), we get a palindrome (87200000278).

The spelling of 10200000077 in words is "ten billion, two hundred million, seventy-seven", and thus it is an aban number.