5105420440445 has 24 divisors (see below), whose sum is σ = 6862785150600. Its totient is φ = 3640151214336.

The previous prime is 5105420440423. The next prime is 5105420440453. The reversal of 5105420440445 is 5440440245015.

It can be written as a sum of positive squares in 12 ways, for example, as 1204139712889 + 3901280727556 = 1097333^2 + 1975166^2 .

It is not a de Polignac number, because 5105420440445 - 2⁶ = 5105420440381 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 5105420440399 and 5105420440408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 104146490 + ... + 104195499.

It is an arithmetic number, because the mean of its divisors is an integer number (285949381275).

Almost surely, 2^{5105420440445} is an apocalyptic number.

It is an amenable number.

5105420440445 is a deficient number, since it is larger than the sum of its proper divisors (1757364710155).

5105420440445 is a wasteful number, since it uses less digits than its factorization.

5105420440445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208342049 (or 208342036 counting only the distinct ones).

The product of its (nonzero) digits is 256000, while the sum is 38.

The spelling of 5105420440445 in words is "five trillion, one hundred five billion, four hundred twenty million, four hundred forty thousand, four hundred forty-five".