5021421450663 has 8 divisors (see below), whose sum is σ = 6695334462448. Its totient is φ = 3347561369664.

The previous prime is 5021421450601. The next prime is 5021421450667. The reversal of 5021421450663 is 3660541241205.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 5021421450663 - 2⁹ = 5021421450151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5021421450667) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13010806 + ... + 13391187.

It is an arithmetic number, because the mean of its divisors is an integer number (836916807806).

Almost surely, 2^{5021421450663} is an apocalyptic number.

5021421450663 is a deficient number, since it is larger than the sum of its proper divisors (1673913011785).

5021421450663 is a wasteful number, since it uses less digits than its factorization.

5021421450663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26465393.

The product of its (nonzero) digits is 172800, while the sum is 39.

Adding to 5021421450663 its reverse (3660541241205), we get a palindrome (8681962691868).

The spelling of 5021421450663 in words is "five trillion, twenty-one billion, four hundred twenty-one million, four hundred fifty thousand, six hundred sixty-three".