501800771472 has 160 divisors (see below), whose sum is σ = 1740511933440. Its totient is φ = 120311861760.

The previous prime is 501800771471. The next prime is 501800771501. The reversal of 501800771472 is 274177008105.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (501800771471) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 5173822 + ... + 5269917.

It is an arithmetic number, because the mean of its divisors is an integer number (10878199584).

Almost surely, 2^501800771472 is an apocalyptic number.

501800771472 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

501800771472 is an abundant number, since it is smaller than the sum of its proper divisors (1238711161968).

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

501800771472 is a wasteful number, since it uses less digits than its factorization.

501800771472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10443781 (or 10443775 counting only the distinct ones).

The product of its (nonzero) digits is 109760, while the sum is 42.

Adding to 501800771472 its reverse (274177008105), we get a palindrome (775977779577).

The spelling of 501800771472 in words is "five hundred one billion, eight hundred million, seven hundred seventy-one thousand, four hundred seventy-two".