51147550412 has 48 divisors (see below), whose sum is σ = 108334775808. Its totient is φ = 20626694400.

The previous prime is 51147550367. The next prime is 51147550451. The reversal of 51147550412 is 21405574115.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3413537 + ... + 3428487.

It is an arithmetic number, because the mean of its divisors is an integer number (2256974496).

Almost surely, 2^51147550412 is an apocalyptic number.

It is an amenable number.

51147550412 is an abundant number, since it is smaller than the sum of its proper divisors (57187225396).

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

51147550412 is a wasteful number, since it uses less digits than its factorization.

51147550412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22166 (or 22164 counting only the distinct ones).

The product of its (nonzero) digits is 28000, while the sum is 35.

The spelling of 51147550412 in words is "fifty-one billion, one hundred forty-seven million, five hundred fifty thousand, four hundred twelve".