504809761956 has 24 divisors (see below), whose sum is σ = 1186487181600. Its totient is φ = 167041672512.

The previous prime is 504809761949. The next prime is 504809761957. The reversal of 504809761956 is 659167908405.

It is a self number, because there is not a number n which added to its sum of digits gives 504809761956.

It is not an unprimeable number, because it can be changed into a prime (504809761957) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 153529306 + ... + 153532593.

It is an arithmetic number, because the mean of its divisors is an integer number (49436965900).

Almost surely, 2^504809761956 is an apocalyptic number.

It is an amenable number.

504809761956 is an abundant number, since it is smaller than the sum of its proper divisors (681677419644).

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

504809761956 is a wasteful number, since it uses less digits than its factorization.

504809761956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307062043 (or 307062041 counting only the distinct ones).

The product of its (nonzero) digits is 16329600, while the sum is 60.

The spelling of 504809761956 in words is "five hundred four billion, eight hundred nine million, seven hundred sixty-one thousand, nine hundred fifty-six".