520718994432 has 1056 divisors, whose sum is σ = 1931248405632. Its totient is φ = 131478847488.

The previous prime is 520718994407. The next prime is 520718994457. The reversal of 520718994432 is 234499817025.

520718994432 is a `hidden beast` number, since 5 + 20 + 7 + 189 + 9 + 4 + 432 = 666.

It is an interprime number because it is at equal distance from previous prime (520718994407) and next prime (520718994457).

It is a super-2 number, since 2×520718994432² (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 95 ways as a sum of consecutive naturals, for example, 3009936298 + ... + 3009936470.

Almost surely, 2^520718994432 is an apocalyptic number.

520718994432 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 520718994432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (965624202816).

520718994432 is an abundant number, since it is smaller than the sum of its proper divisors (1410529411200).

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

520718994432 is a wasteful number, since it uses less digits than its factorization.

520718994432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 353 (or 332 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 54.

The spelling of 520718994432 in words is "five hundred twenty billion, seven hundred eighteen million, nine hundred ninety-four thousand, four hundred thirty-two".