7898814560520 has 384 divisors, whose sum is σ = 28742968800000. Its totient is φ = 1867837999104.

The previous prime is 7898814560503. The next prime is 7898814560633. The reversal of 7898814560520 is 250654188987.

7898814560520 is a `hidden beast` number, since 7 + 8 + 9 + 8 + 8 + 1 + 45 + 60 + 520 = 666.

It is a super-2 number, since 2×7898814560520² (a number of 27 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, 26862051 + ... + 27154509.

It is an arithmetic number, because the mean of its divisors is an integer number (74851481250).

Almost surely, 2^{7898814560520} 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 7898814560520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14371484400000).

7898814560520 is an abundant number, since it is smaller than the sum of its proper divisors (20844154239480).

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

7898814560520 is a wasteful number, since it uses less digits than its factorization.

7898814560520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292717 (or 292710 counting only the distinct ones).

The product of its (nonzero) digits is 38707200, while the sum is 63.

The spelling of 7898814560520 in words is "seven trillion, eight hundred ninety-eight billion, eight hundred fourteen million, five hundred sixty thousand, five hundred twenty".