505138503745 has 32 divisors (see below), whose sum is σ = 632592374400. Its totient is φ = 386960231424.

The previous prime is 505138503739. The next prime is 505138503767. The reversal of 505138503745 is 547305831505.

It is a cyclic number.

It is not a de Polignac number, because 505138503745 - 2¹¹ = 505138501697 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 505138503695 and 505138503704.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2057049 + ... + 2289481.

It is an arithmetic number, because the mean of its divisors is an integer number (19768511700).

Almost surely, 2^505138503745 is an apocalyptic number.

It is an amenable number.

505138503745 is a deficient number, since it is larger than the sum of its proper divisors (127453870655).

505138503745 is a wasteful number, since it uses less digits than its factorization.

505138503745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232689.

The product of its (nonzero) digits is 1260000, while the sum is 46.

The spelling of 505138503745 in words is "five hundred five billion, one hundred thirty-eight million, five hundred three thousand, seven hundred forty-five".