10202840252977 has 2 divisors, whose sum is σ = 10202840252978. Its totient is φ = 10202840252976.

The previous prime is 10202840252863. The next prime is 10202840252987. The reversal of 10202840252977 is 77925204820201.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10202172599056 + 667653921 = 3194084^2 + 25839^2 .

It is a cyclic number.

It is not a de Polignac number, because 10202840252977 - 2¹¹ = 10202840250929 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10202840252977.

It is not a weakly prime, because it can be changed into another prime (10202840252987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5101420126488 + 5101420126489.

It is an arithmetic number, because the mean of its divisors is an integer number (5101420126489).

Almost surely, 2^{10202840252977} is an apocalyptic number.

It is an amenable number.

10202840252977 is a deficient number, since it is larger than the sum of its proper divisors (1).

10202840252977 is an equidigital number, since it uses as much as digits as its factorization.

10202840252977 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1128960, while the sum is 49.

The spelling of 10202840252977 in words is "ten trillion, two hundred two billion, eight hundred forty million, two hundred fifty-two thousand, nine hundred seventy-seven".