51312302046 has 24 divisors (see below), whose sum is σ = 111819300840. Its totient is φ = 17005232016.

The previous prime is 51312302033. The next prime is 51312302077. The reversal of 51312302046 is 64020321315.

51312302046 is a `hidden beast` number, since 5 + 1 + 312 + 302 + 0 + 46 = 666.

It is a super-2 number, since 2×51312302046² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

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, 8235856 + ... + 8242083.

It is an arithmetic number, because the mean of its divisors is an integer number (4659137535).

Almost surely, 2^51312302046 is an apocalyptic number.

51312302046 is an abundant number, since it is smaller than the sum of its proper divisors (60506998794).

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

51312302046 is a wasteful number, since it uses less digits than its factorization.

51312302046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16478120 (or 16478117 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The spelling of 51312302046 in words is "fifty-one billion, three hundred twelve million, three hundred two thousand, forty-six".