51147328188 has 96 divisors (see below), whose sum is σ = 142605308160. Its totient is φ = 14084439040.

The previous prime is 51147328181. The next prime is 51147328213. The reversal of 51147328188 is 88182374115.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51147328181) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 327906 + ... + 458057.

It is an arithmetic number, because the mean of its divisors is an integer number (1485471960).

Almost surely, 2^51147328188 is an apocalyptic number.

51147328188 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

It is an amenable number.

51147328188 is an abundant number, since it is smaller than the sum of its proper divisors (91457979972).

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

51147328188 is a wasteful number, since it uses less digits than its factorization.

51147328188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 786027 (or 786025 counting only the distinct ones).

The product of its digits is 430080, while the sum is 48.

The spelling of 51147328188 in words is "fifty-one billion, one hundred forty-seven million, three hundred twenty-eight thousand, one hundred eighty-eight".