505757542939 has 8 divisors (see below), whose sum is σ = 551740795200. Its totient is φ = 459775173000.

The previous prime is 505757542903. The next prime is 505757542943. The reversal of 505757542939 is 939245757505.

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

It is not a de Polignac number, because 505757542939 - 2⁹ = 505757542427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (505757542039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1721212 + ... + 1993510.

It is an arithmetic number, because the mean of its divisors is an integer number (68967599400).

Almost surely, 2^505757542939 is an apocalyptic number.

505757542939 is a deficient number, since it is larger than the sum of its proper divisors (45983252261).

505757542939 is a wasteful number, since it uses less digits than its factorization.

505757542939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 441161.

The product of its (nonzero) digits is 59535000, while the sum is 61.

The spelling of 505757542939 in words is "five hundred five billion, seven hundred fifty-seven million, five hundred forty-two thousand, nine hundred thirty-nine".