8101245850777 has 2 divisors, whose sum is σ = 8101245850778. Its totient is φ = 8101245850776.

The previous prime is 8101245850721. The next prime is 8101245850823. The reversal of 8101245850777 is 7770585421018.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4613835264256 + 3487410586521 = 2147984^2 + 1867461^2 .

It is a cyclic number.

It is not a de Polignac number, because 8101245850777 - 2³⁹ = 7551490036889 is a prime.

It is not a weakly prime, because it can be changed into another prime (8101245850277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4050622925388 + 4050622925389.

It is an arithmetic number, because the mean of its divisors is an integer number (4050622925389).

Almost surely, 2^{8101245850777} is an apocalyptic number.

It is an amenable number.

8101245850777 is a deficient number, since it is larger than the sum of its proper divisors (1).

8101245850777 is an equidigital number, since it uses as much as digits as its factorization.

8101245850777 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4390400, while the sum is 55.

The spelling of 8101245850777 in words is "eight trillion, one hundred one billion, two hundred forty-five million, eight hundred fifty thousand, seven hundred seventy-seven".