5105420440521 has 8 divisors (see below), whose sum is σ = 6935665504320. Its totient is φ = 3339394501872.

The previous prime is 5105420440513. The next prime is 5105420440537. The reversal of 5105420440521 is 1250440245015.

It is a happy number.

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

It is not a de Polignac number, because 5105420440521 - 2³ = 5105420440513 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5105420440511) 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, 16054781101 + ... + 16054781418.

It is an arithmetic number, because the mean of its divisors is an integer number (866958188040).

Almost surely, 2^{5105420440521} is an apocalyptic number.

It is an amenable number.

5105420440521 is a deficient number, since it is larger than the sum of its proper divisors (1830245063799).

5105420440521 is a wasteful number, since it uses less digits than its factorization.

5105420440521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32109562575.

The product of its (nonzero) digits is 32000, while the sum is 33.

Adding to 5105420440521 its reverse (1250440245015), we get a palindrome (6355860685536).

The spelling of 5105420440521 in words is "five trillion, one hundred five billion, four hundred twenty million, four hundred forty thousand, five hundred twenty-one".