10021623643 has 2 divisors, whose sum is σ = 10021623644. Its totient is φ = 10021623642.

The previous prime is 10021623629. The next prime is 10021623683. The reversal of 10021623643 is 34632612001.

10021623643 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10021623643 is a prime.

It is not a weakly prime, because it can be changed into another prime (10021623683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5010811821 + 5010811822.

It is an arithmetic number, because the mean of its divisors is an integer number (5010811822).

Almost surely, 2^10021623643 is an apocalyptic number.

10021623643 is a deficient number, since it is larger than the sum of its proper divisors (1).

10021623643 is an equidigital number, since it uses as much as digits as its factorization.

10021623643 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 28.

The spelling of 10021623643 in words is "ten billion, twenty-one million, six hundred twenty-three thousand, six hundred forty-three".