505331937738 has 40 divisors (see below), whose sum is σ = 1136347563780. Its totient is φ = 167844519360.

The previous prime is 505331937713. The next prime is 505331937767. The reversal of 505331937738 is 837739133505.

505331937738 is a `hidden beast` number, since 5 + 0 + 533 + 1 + 9 + 3 + 77 + 38 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 501472173609 + 3859764129 = 708147^2 + 62127^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 5504893 + ... + 5595936.

Almost surely, 2^505331937738 is an apocalyptic number.

505331937738 is an abundant number, since it is smaller than the sum of its proper divisors (631015626042).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

505331937738 is a wasteful number, since it uses less digits than its factorization.

505331937738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11101124 (or 11101115 counting only the distinct ones).

The product of its (nonzero) digits is 7144200, while the sum is 54.

The spelling of 505331937738 in words is "five hundred five billion, three hundred thirty-one million, nine hundred thirty-seven thousand, seven hundred thirty-eight".