520984004749 has 64 divisors (see below), whose sum is σ = 603054728640. Its totient is φ = 446534000640.

The previous prime is 520984004743. The next prime is 520984004753. The reversal of 520984004749 is 947400489025.

It can be written as a sum of positive squares in 32 ways, for example, as 352212575625 + 168771429124 = 593475^2 + 410818^2 .

It is not a de Polignac number, because 520984004749 - 2⁹ = 520984004237 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 520984004696 and 520984004705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520984004743) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 510267859 + ... + 510268879.

It is an arithmetic number, because the mean of its divisors is an integer number (9422730135).

Almost surely, 2^520984004749 is an apocalyptic number.

It is an amenable number.

520984004749 is a deficient number, since it is larger than the sum of its proper divisors (82070723891).

520984004749 is a wasteful number, since it uses less digits than its factorization.

520984004749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1490.

The product of its (nonzero) digits is 2903040, while the sum is 52.

The spelling of 520984004749 in words is "five hundred twenty billion, nine hundred eighty-four million, four thousand, seven hundred forty-nine".