10240634665477 has 2 divisors, whose sum is σ = 10240634665478. Its totient is φ = 10240634665476.

The previous prime is 10240634665441. The next prime is 10240634665483. The reversal of 10240634665477 is 77456643604201.

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., 6350268960676 + 3890365704801 = 2519974^2 + 1972401^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10240634665477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10240634665427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5120317332738 + 5120317332739.

It is an arithmetic number, because the mean of its divisors is an integer number (5120317332739).

Almost surely, 2^{10240634665477} is an apocalyptic number.

It is an amenable number.

10240634665477 is a deficient number, since it is larger than the sum of its proper divisors (1).

10240634665477 is an equidigital number, since it uses as much as digits as its factorization.

10240634665477 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20321280, while the sum is 55.

The spelling of 10240634665477 in words is "ten trillion, two hundred forty billion, six hundred thirty-four million, six hundred sixty-five thousand, four hundred seventy-seven".