51347134464 has 48 divisors (see below), whose sum is σ = 136892279160. Its totient is φ = 17115709440.

The previous prime is 51347134463. The next prime is 51347134471. The reversal of 51347134464 is 46443174315.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51347134463) 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, 4172497 + ... + 4184784.

Almost surely, 2^51347134464 is an apocalyptic number.

It is an amenable number.

51347134464 is an abundant number, since it is smaller than the sum of its proper divisors (85545144696).

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

51347134464 is an equidigital number, since it uses as much as digits as its factorization.

51347134464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8357306 (or 8357286 counting only the distinct ones).

The product of its digits is 483840, while the sum is 42.

The spelling of 51347134464 in words is "fifty-one billion, three hundred forty-seven million, one hundred thirty-four thousand, four hundred sixty-four".