505387420524 has 96 divisors (see below), whose sum is σ = 1525697994240. Its totient is φ = 141671934144.

The previous prime is 505387420523. The next prime is 505387420529. The reversal of 505387420524 is 425024783505.

505387420524 is a `hidden beast` number, since 5 + 0 + 5 + 3 + 87 + 42 + 0 + 524 = 666.

505387420524 is digitally balanced in base 4 and base 7, because in such bases it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 505387420524.

It is not an unprimeable number, because it can be changed into a prime (505387420523) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6266554 + ... + 6346689.

It is an arithmetic number, because the mean of its divisors is an integer number (15892687440).

Almost surely, 2^505387420524 is an apocalyptic number.

505387420524 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

505387420524 is an abundant number, since it is smaller than the sum of its proper divisors (1020310573716).

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

505387420524 is a wasteful number, since it uses less digits than its factorization.

505387420524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12613316 (or 12613308 counting only the distinct ones).

The product of its (nonzero) digits is 1344000, while the sum is 45.

The spelling of 505387420524 in words is "five hundred five billion, three hundred eighty-seven million, four hundred twenty thousand, five hundred twenty-four".