510721232772 has 48 divisors (see below), whose sum is σ = 1200360752640. Its totient is φ = 169004402688.

The previous prime is 510721232737. The next prime is 510721232809. The reversal of 510721232772 is 277232127015.

It is a self number, because there is not a number n which added to its sum of digits gives 510721232772.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 879178 + ... + 1339550.

It is an arithmetic number, because the mean of its divisors is an integer number (25007515680).

Almost surely, 2^510721232772 is an apocalyptic number.

It is an amenable number.

510721232772 is an abundant number, since it is smaller than the sum of its proper divisors (689639519868).

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

510721232772 is a wasteful number, since it uses less digits than its factorization.

510721232772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 461052 (or 461050 counting only the distinct ones).

The product of its (nonzero) digits is 82320, while the sum is 39.

Adding to 510721232772 its reverse (277232127015), we get a palindrome (787953359787).

The spelling of 510721232772 in words is "five hundred ten billion, seven hundred twenty-one million, two hundred thirty-two thousand, seven hundred seventy-two".