51347516148 has 36 divisors (see below), whose sum is σ = 129802805860. Its totient is φ = 17114823936.

The previous prime is 51347516147. The next prime is 51347516173. The reversal of 51347516148 is 84161574315.

51347516148 is a `hidden beast` number, since 5 + 13 + 475 + 161 + 4 + 8 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 17333828964 + 34013687184 = 131658^2 + 184428^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51347516147) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 807036 + ... + 868332.

Almost surely, 2^51347516148 is an apocalyptic number.

It is an amenable number.

51347516148 is an abundant number, since it is smaller than the sum of its proper divisors (78455289712).

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

51347516148 is a wasteful number, since it uses less digits than its factorization.

51347516148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84576 (or 84571 counting only the distinct ones).

The product of its digits is 403200, while the sum is 45.

The spelling of 51347516148 in words is "fifty-one billion, three hundred forty-seven million, five hundred sixteen thousand, one hundred forty-eight".