68270724877 has 2 divisors, whose sum is σ = 68270724878. Its totient is φ = 68270724876.

The previous prime is 68270724853. The next prime is 68270724887. The reversal of 68270724877 is 77842707286.

68270724877 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 61439041161 + 6831683716 = 247869^2 + 82654^2 .

It is a cyclic number.

It is not a de Polignac number, because 68270724877 - 2¹⁵ = 68270692109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68270724827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34135362438 + 34135362439.

It is an arithmetic number, because the mean of its divisors is an integer number (34135362439).

Almost surely, 2^68270724877 is an apocalyptic number.

It is an amenable number.

68270724877 is a deficient number, since it is larger than the sum of its proper divisors (1).

68270724877 is an equidigital number, since it uses as much as digits as its factorization.

68270724877 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14751744, while the sum is 58.

The spelling of 68270724877 in words is "sixty-eight billion, two hundred seventy million, seven hundred twenty-four thousand, eight hundred seventy-seven".