52121213824418 has 8 divisors (see below), whose sum is σ = 80294842918812. Its totient is φ = 25356266184816.

The previous prime is 52121213824399. The next prime is 52121213824423. The reversal of 52121213824418 is 81442831212125.

It can be written as a sum of positive squares in 2 ways, for example, as 39890757023569 + 12230456800849 = 6315913^2 + 3497207^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 352170363605 + ... + 352170363752.

Almost surely, 2^{52121213824418} is an apocalyptic number.

52121213824418 is a deficient number, since it is larger than the sum of its proper divisors (28173629094394).

52121213824418 is a wasteful number, since it uses less digits than its factorization.

52121213824418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 704340727396.

The product of its digits is 245760, while the sum is 44.

The spelling of 52121213824418 in words is "fifty-two trillion, one hundred twenty-one billion, two hundred thirteen million, eight hundred twenty-four thousand, four hundred eighteen".