513845074020 has 192 divisors, whose sum is σ = 1536791719680. Its totient is φ = 127915425792.

The previous prime is 513845073983. The next prime is 513845074069. The reversal of 513845074020 is 20470548315.

It is a self number, because there is not a number n which added to its sum of digits gives 513845074020.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 22274332 + ... + 22297388.

It is an arithmetic number, because the mean of its divisors is an integer number (8004123540).

Almost surely, 2^513845074020 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 513845074020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (768395859840).

513845074020 is an abundant number, since it is smaller than the sum of its proper divisors (1022946645660).

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

513845074020 is a wasteful number, since it uses less digits than its factorization.

513845074020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23374 (or 23372 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 39.

The spelling of 513845074020 in words is "five hundred thirteen billion, eight hundred forty-five million, seventy-four thousand, twenty".