505420121245 has 48 divisors (see below), whose sum is σ = 663567603840. Its totient is φ = 369364499712.

The previous prime is 505420121197. The next prime is 505420121303. The reversal of 505420121245 is 542121024505.

It is not a de Polignac number, because 505420121245 - 2²¹ = 505418024093 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 111841096 + ... + 111845614.

It is an arithmetic number, because the mean of its divisors is an integer number (13824325080).

Almost surely, 2^505420121245 is an apocalyptic number.

It is an amenable number.

505420121245 is a deficient number, since it is larger than the sum of its proper divisors (158147482595).

505420121245 is a wasteful number, since it uses less digits than its factorization.

505420121245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5894 (or 5881 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 31.

The spelling of 505420121245 in words is "five hundred five billion, four hundred twenty million, one hundred twenty-one thousand, two hundred forty-five".