10421240035477 has 2 divisors, whose sum is σ = 10421240035478. Its totient is φ = 10421240035476.

The previous prime is 10421240035397. The next prime is 10421240035561. The reversal of 10421240035477 is 77453004212401.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5580716421316 + 4840523614161 = 2362354^2 + 2200119^2 .

It is a cyclic number.

It is not a de Polignac number, because 10421240035477 - 2¹⁵ = 10421240002709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10421240035777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5210620017738 + 5210620017739.

It is an arithmetic number, because the mean of its divisors is an integer number (5210620017739).

Almost surely, 2^{10421240035477} is an apocalyptic number.

It is an amenable number.

10421240035477 is a deficient number, since it is larger than the sum of its proper divisors (1).

10421240035477 is an equidigital number, since it uses as much as digits as its factorization.

10421240035477 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 188160, while the sum is 40.

Adding to 10421240035477 its reverse (77453004212401), we get a palindrome (87874244247878).

The spelling of 10421240035477 in words is "ten trillion, four hundred twenty-one billion, two hundred forty million, thirty-five thousand, four hundred seventy-seven".