5161812334572 has 18 divisors (see below), whose sum is σ = 12044247144748. Its totient is φ = 1720601488088.

The previous prime is 5161812334531. The next prime is 5161812334603. The reversal of 5161812334572 is 2754332181615.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7542379 + ... + 8198237.

Almost surely, 2^{5161812334572} is an apocalyptic number.

It is an amenable number.

5161812334572 is an abundant number, since it is smaller than the sum of its proper divisors (6882434810176).

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

5161812334572 is an frugal number, since it uses more digits than its factorization.

5161812334572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1311725 (or 655864 counting only the distinct ones).

The product of its digits is 1209600, while the sum is 48.

Multiplying 5161812334572 by its sum of digits (48), we get a square (247766992059456 = 15740616²).

The spelling of 5161812334572 in words is "five trillion, one hundred sixty-one billion, eight hundred twelve million, three hundred thirty-four thousand, five hundred seventy-two".