51670349712 has 480 divisors, whose sum is σ = 169931623680. Its totient is φ = 15109079040.

The previous prime is 51670349711. The next prime is 51670349749. The reversal of 51670349712 is 21794307615.

51670349712 is a `hidden beast` number, since 516 + 7 + 0 + 34 + 97 + 12 = 666.

51670349712 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (51670349711) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 62328114 + ... + 62328942.

It is an arithmetic number, because the mean of its divisors is an integer number (354024216).

Almost surely, 2^51670349712 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 51670349712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84965811840).

51670349712 is an abundant number, since it is smaller than the sum of its proper divisors (118261273968).

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

51670349712 is a wasteful number, since it uses less digits than its factorization.

51670349712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 933 (or 915 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 45.

The spelling of 51670349712 in words is "fifty-one billion, six hundred seventy million, three hundred forty-nine thousand, seven hundred twelve".