505267947895 has 8 divisors (see below), whose sum is σ = 606329840160. Its totient is φ = 404208823200.

The previous prime is 505267947889. The next prime is 505267947901. The reversal of 505267947895 is 598749762505.

It is an interprime number because it is at equal distance from previous prime (505267947889) and next prime (505267947901).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 505267947895 - 2²⁵ = 505234393463 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 505267947895.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 266460 + ... + 1039969.

It is an arithmetic number, because the mean of its divisors is an integer number (75791230020).

Almost surely, 2^505267947895 is an apocalyptic number.

505267947895 is a deficient number, since it is larger than the sum of its proper divisors (101061892265).

505267947895 is a wasteful number, since it uses less digits than its factorization.

505267947895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1383785.

The product of its (nonzero) digits is 190512000, while the sum is 67.

The spelling of 505267947895 in words is "five hundred five billion, two hundred sixty-seven million, nine hundred forty-seven thousand, eight hundred ninety-five".