51451500312 has 24 divisors (see below), whose sum is σ = 139347813540. Its totient is φ = 17150500080.

The previous prime is 51451500311. The next prime is 51451500337. The reversal of 51451500312 is 21300515415.

51451500312 is a `hidden beast` number, since 5 + 145 + 1 + 500 + 3 + 12 = 666.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51451500311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 357302014 + ... + 357302157.

Almost surely, 2^51451500312 is an apocalyptic number.

It is an amenable number.

51451500312 is an abundant number, since it is smaller than the sum of its proper divisors (87896313228).

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

51451500312 is a wasteful number, since it uses less digits than its factorization.

51451500312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 714604183 (or 714604176 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

The spelling of 51451500312 in words is "fifty-one billion, four hundred fifty-one million, five hundred thousand, three hundred twelve".