51020889061736 has 64 divisors (see below), whose sum is σ = 105877266264000. Its totient is φ = 22856042626560.

The previous prime is 51020889061717. The next prime is 51020889061783. The reversal of 51020889061736 is 63716098802015.

It is a super-2 number, since 2×51020889061736² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8205371 + ... + 13014218.

It is an arithmetic number, because the mean of its divisors is an integer number (1654332285375).

Almost surely, 2^{51020889061736} is an apocalyptic number.

It is an amenable number.

51020889061736 is an abundant number, since it is smaller than the sum of its proper divisors (54856377202264).

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

51020889061736 is a wasteful number, since it uses less digits than its factorization.

51020889061736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21220002 (or 21219998 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 56.

The spelling of 51020889061736 in words is "fifty-one trillion, twenty billion, eight hundred eighty-nine million, sixty-one thousand, seven hundred thirty-six".