520267777272 has 128 divisors (see below), whose sum is σ = 1477371571200. Its totient is φ = 169567776000.

The previous prime is 520267777261. The next prime is 520267777277. The reversal of 520267777272 is 272777762025.

520267777272 is a `hidden beast` number, since 520 + 26 + 7 + 7 + 77 + 27 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520267777277) 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, 10645372 + ... + 10694132.

It is an arithmetic number, because the mean of its divisors is an integer number (11541965400).

Almost surely, 2^520267777272 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 520267777272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (738685785600).

520267777272 is an abundant number, since it is smaller than the sum of its proper divisors (957103793928).

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

520267777272 is a wasteful number, since it uses less digits than its factorization.

520267777272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49874 (or 49864 counting only the distinct ones).

The product of its (nonzero) digits is 8067360, while the sum is 54.

The spelling of 520267777272 in words is "five hundred twenty billion, two hundred sixty-seven million, seven hundred seventy-seven thousand, two hundred seventy-two".