500121633536512 has 40 divisors (see below), whose sum is σ = 1076133118330116. Its totient is φ = 230825369321472.

The previous prime is 500121633536491. The next prime is 500121633536513. The reversal of 500121633536512 is 215635336121005.

It can be written as a sum of positive squares in 2 ways, for example, as 498254540851456 + 1867092685056 = 22321616^2 + 1366416^2 .

It is a super-2 number, since 2×500121633536512² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (500121633536513) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37569226633 + ... + 37569239944.

Almost surely, 2^{500121633536512} is an apocalyptic number.

500121633536512 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

500121633536512 is an abundant number, since it is smaller than the sum of its proper divisors (576011484793604).

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

500121633536512 is an equidigital number, since it uses as much as digits as its factorization.

500121633536512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75138466608 (or 75138466592 counting only the distinct ones).

The product of its (nonzero) digits is 486000, while the sum is 43.

Adding to 500121633536512 its reverse (215635336121005), we get a palindrome (715756969657517).

The spelling of 500121633536512 in words is "five hundred trillion, one hundred twenty-one billion, six hundred thirty-three million, five hundred thirty-six thousand, five hundred twelve".