10420632641 has 2 divisors, whose sum is σ = 10420632642. Its totient is φ = 10420632640.

The previous prime is 10420632587. The next prime is 10420632679. The reversal of 10420632641 is 14623602401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7382418241 + 3038214400 = 85921^2 + 55120^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10420632641 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (10420632041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5210316320 + 5210316321.

It is an arithmetic number, because the mean of its divisors is an integer number (5210316321).

Almost surely, 2^10420632641 is an apocalyptic number.

It is an amenable number.

10420632641 is a deficient number, since it is larger than the sum of its proper divisors (1).

10420632641 is an equidigital number, since it uses as much as digits as its factorization.

10420632641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 29.

The spelling of 10420632641 in words is "ten billion, four hundred twenty million, six hundred thirty-two thousand, six hundred forty-one".