51860081131212 has 48 divisors (see below), whose sum is σ = 121330223118720. Its totient is φ = 17240551665792.

The previous prime is 51860081131211. The next prime is 51860081131259. The reversal of 51860081131212 is 21213118006815.

It is not an unprimeable number, because it can be changed into a prime (51860081131211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4463464 + ... + 11119472.

It is an arithmetic number, because the mean of its divisors is an integer number (2527712981640).

Almost surely, 2^{51860081131212} is an apocalyptic number.

It is an amenable number.

51860081131212 is an abundant number, since it is smaller than the sum of its proper divisors (69470141987508).

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

51860081131212 is a wasteful number, since it uses less digits than its factorization.

51860081131212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6657750 (or 6657748 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 39.

The spelling of 51860081131212 in words is "fifty-one trillion, eight hundred sixty billion, eighty-one million, one hundred thirty-one thousand, two hundred twelve".