51651550312 has 32 divisors (see below), whose sum is σ = 102164169600. Its totient is φ = 24413647104.

The previous prime is 51651550303. The next prime is 51651550337. The reversal of 51651550312 is 21305515615.

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, 296593 + ... + 437344.

It is an arithmetic number, because the mean of its divisors is an integer number (3192630300).

Almost surely, 2^51651550312 is an apocalyptic number.

It is an amenable number.

51651550312 is a deficient number, since it is larger than the sum of its proper divisors (50512619288).

51651550312 is a wasteful number, since it uses less digits than its factorization.

51651550312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 734425 (or 734421 counting only the distinct ones).

The product of its (nonzero) digits is 22500, while the sum is 34.

The spelling of 51651550312 in words is "fifty-one billion, six hundred fifty-one million, five hundred fifty thousand, three hundred twelve".