51058649012 has 12 divisors (see below), whose sum is σ = 102117298080. Its totient is φ = 21882278136.

The previous prime is 51058649011. The next prime is 51058649021. The reversal of 51058649012 is 21094685015.

51058649012 is an admirable number.

It is a super-2 number, since 2×51058649012² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51058649011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 911761562 + ... + 911761617.

It is an arithmetic number, because the mean of its divisors is an integer number (8509774840).

Almost surely, 2^51058649012 is an apocalyptic number.

It is an amenable number.

51058649012 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

51058649012 is a wasteful number, since it uses less digits than its factorization.

51058649012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1823523190 (or 1823523188 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 41.

The spelling of 51058649012 in words is "fifty-one billion, fifty-eight million, six hundred forty-nine thousand, twelve".