51076855816 has 16 divisors (see below), whose sum is σ = 109450405440. Its totient is φ = 21890081040.

The previous prime is 51076855813. The next prime is 51076855829. The reversal of 51076855816 is 61855867015.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (51076855813) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 456043300 + ... + 456043411.

It is an arithmetic number, because the mean of its divisors is an integer number (6840650340).

Almost surely, 2^51076855816 is an apocalyptic number.

51076855816 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

51076855816 is an abundant number, since it is smaller than the sum of its proper divisors (58373549624).

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

51076855816 is a wasteful number, since it uses less digits than its factorization.

51076855816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 912086724 (or 912086720 counting only the distinct ones).

The product of its (nonzero) digits is 2016000, while the sum is 52.

The spelling of 51076855816 in words is "fifty-one billion, seventy-six million, eight hundred fifty-five thousand, eight hundred sixteen".