87925667497 has 2 divisors, whose sum is σ = 87925667498. Its totient is φ = 87925667496.

The previous prime is 87925667491. The next prime is 87925667503. The reversal of 87925667497 is 79476652978.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (87925667491) and next prime (87925667503).

It can be written as a sum of positive squares in only one way, i.e., 79917028416 + 8008639081 = 282696^2 + 89491^2 .

It is a cyclic number.

It is not a de Polignac number, because 87925667497 - 2¹¹ = 87925665449 is a prime.

It is not a weakly prime, because it can be changed into another prime (87925667491) 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, 43962833748 + 43962833749.

It is an arithmetic number, because the mean of its divisors is an integer number (43962833749).

Almost surely, 2^87925667497 is an apocalyptic number.

It is an amenable number.

87925667497 is a deficient number, since it is larger than the sum of its proper divisors (1).

87925667497 is an equidigital number, since it uses as much as digits as its factorization.

87925667497 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 320060160, while the sum is 70.

The spelling of 87925667497 in words is "eighty-seven billion, nine hundred twenty-five million, six hundred sixty-seven thousand, four hundred ninety-seven".