51210265054212 has 36 divisors (see below), whose sum is σ = 141216185453616. Its totient is φ = 15518262137520.

The previous prime is 51210265054177. The next prime is 51210265054229. The reversal of 51210265054212 is 21245056201215.

51210265054212 is a `hidden beast` number, since 5 + 1 + 2 + 102 + 6 + 5 + 0 + 542 + 1 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 64659425178 + ... + 64659425969.

It is an arithmetic number, because the mean of its divisors is an integer number (3922671818156).

Almost surely, 2^{51210265054212} is an apocalyptic number.

It is an amenable number.

51210265054212 is an abundant number, since it is smaller than the sum of its proper divisors (90005920399404).

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

51210265054212 is a wasteful number, since it uses less digits than its factorization.

51210265054212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129318851168 (or 129318851163 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 36.

The spelling of 51210265054212 in words is "fifty-one trillion, two hundred ten billion, two hundred sixty-five million, fifty-four thousand, two hundred twelve".