512475547820 has 96 divisors (see below), whose sum is σ = 1165657796352. Its totient is φ = 188517367808.

The previous prime is 512475547817. The next prime is 512475547877. The reversal of 512475547820 is 28745574215.

It is a super-2 number, since 2×512475547820² (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 31 ways as a sum of consecutive naturals, for example, 9833672 + ... + 9885648.

It is an arithmetic number, because the mean of its divisors is an integer number (12142268712).

Almost surely, 2^512475547820 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 512475547820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (582828898176).

512475547820 is an abundant number, since it is smaller than the sum of its proper divisors (653182248532).

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

512475547820 is a wasteful number, since it uses less digits than its factorization.

512475547820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52667 (or 52665 counting only the distinct ones).

The product of its (nonzero) digits is 3136000, while the sum is 50.

The spelling of 512475547820 in words is "five hundred twelve billion, four hundred seventy-five million, five hundred forty-seven thousand, eight hundred twenty".