69488307877 has 2 divisors, whose sum is σ = 69488307878. Its totient is φ = 69488307876.

The previous prime is 69488307853. The next prime is 69488307893. The reversal of 69488307877 is 77870388496.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 68798142436 + 690165441 = 262294^2 + 26271^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-69488307877 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (69488307677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34744153938 + 34744153939.

It is an arithmetic number, because the mean of its divisors is an integer number (34744153939).

Almost surely, 2^69488307877 is an apocalyptic number.

It is an amenable number.

69488307877 is a deficient number, since it is larger than the sum of its proper divisors (1).

69488307877 is an equidigital number, since it uses as much as digits as its factorization.

69488307877 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 113799168, while the sum is 67.

The spelling of 69488307877 in words is "sixty-nine billion, four hundred eighty-eight million, three hundred seven thousand, eight hundred seventy-seven".