459779260520 has 32 divisors (see below), whose sum is σ = 1038528664200. Its totient is φ = 183196090368.

The previous prime is 459779260459. The next prime is 459779260553. The reversal of 459779260520 is 25062977954.

It can be written as a sum of positive squares in 4 ways, for example, as 441780891556 + 17998368964 = 664666^2 + 134158^2 .

It is a super-2 number, since 2×459779260520² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22352525 + ... + 22373084.

Almost surely, 2^459779260520 is an apocalyptic number.

459779260520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

459779260520 is an abundant number, since it is smaller than the sum of its proper divisors (578749403680).

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

459779260520 is a wasteful number, since it uses less digits than its factorization.

459779260520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44725877 (or 44725873 counting only the distinct ones).

The product of its (nonzero) digits is 9525600, while the sum is 56.

The spelling of 459779260520 in words is "four hundred fifty-nine billion, seven hundred seventy-nine million, two hundred sixty thousand, five hundred twenty".