505842374487 has 16 divisors (see below), whose sum is σ = 678270983040. Its totient is φ = 335321267232.

The previous prime is 505842374459. The next prime is 505842374533. The reversal of 505842374487 is 784473248505.

It is not a de Polignac number, because 505842374487 - 2¹¹ = 505842372439 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505842374987) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11871673 + ... + 11914205.

It is an arithmetic number, because the mean of its divisors is an integer number (42391936440).

Almost surely, 2^505842374487 is an apocalyptic number.

505842374487 is a deficient number, since it is larger than the sum of its proper divisors (172428608553).

505842374487 is a wasteful number, since it uses less digits than its factorization.

505842374487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64862.

The product of its (nonzero) digits is 30105600, while the sum is 57.

The spelling of 505842374487 in words is "five hundred five billion, eight hundred forty-two million, three hundred seventy-four thousand, four hundred eighty-seven".