4621421621023 has 2 divisors, whose sum is σ = 4621421621024. Its totient is φ = 4621421621022.

The previous prime is 4621421620987. The next prime is 4621421621029. The reversal of 4621421621023 is 3201261241264.

4621421621023 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4621421621023 - 2¹³ = 4621421612831 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4621421621023.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4621421621029) 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, 2310710810511 + 2310710810512.

It is an arithmetic number, because the mean of its divisors is an integer number (2310710810512).

Almost surely, 2^{4621421621023} is an apocalyptic number.

4621421621023 is a deficient number, since it is larger than the sum of its proper divisors (1).

4621421621023 is an equidigital number, since it uses as much as digits as its factorization.

4621421621023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27648, while the sum is 34.

Adding to 4621421621023 its reverse (3201261241264), we get a palindrome (7822682862287).

The spelling of 4621421621023 in words is "four trillion, six hundred twenty-one billion, four hundred twenty-one million, six hundred twenty-one thousand, twenty-three".