51151447312 has 40 divisors (see below), whose sum is σ = 115575440000. Its totient is φ = 21922046496.

The previous prime is 51151447301. The next prime is 51151447367. The reversal of 51151447312 is 21374415115.

It is a super-2 number, since 2×51151447312² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4654812 + ... + 4665787.

It is an arithmetic number, because the mean of its divisors is an integer number (2889386000).

Almost surely, 2^51151447312 is an apocalyptic number.

It is an amenable number.

51151447312 is an abundant number, since it is smaller than the sum of its proper divisors (64423992688).

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

51151447312 is an equidigital number, since it uses as much as digits as its factorization.

51151447312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9320628 (or 9320608 counting only the distinct ones).

The product of its digits is 16800, while the sum is 34.

The spelling of 51151447312 in words is "fifty-one billion, one hundred fifty-one million, four hundred forty-seven thousand, three hundred twelve".