51717610212 has 24 divisors (see below), whose sum is σ = 120905173536. Its totient is φ = 17206239168.

The previous prime is 51717610159. The next prime is 51717610249. The reversal of 51717610212 is 21201671715.

It is a super-2 number, since 2×51717610212² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4113993 + ... + 4126544.

It is an arithmetic number, because the mean of its divisors is an integer number (5037715564).

Almost surely, 2^51717610212 is an apocalyptic number.

It is an amenable number.

51717610212 is an abundant number, since it is smaller than the sum of its proper divisors (69187563324).

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

51717610212 is a wasteful number, since it uses less digits than its factorization.

51717610212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8241067 (or 8241065 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 33.

The spelling of 51717610212 in words is "fifty-one billion, seven hundred seventeen million, six hundred ten thousand, two hundred twelve".