51381061434784 has 48 divisors (see below), whose sum is σ = 102816582247008. Its totient is φ = 25270036399872.

The previous prime is 51381061434727. The next prime is 51381061434803. The reversal of 51381061434784 is 48743416018315.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16079607 + ... + 19008310.

It is an arithmetic number, because the mean of its divisors is an integer number (2142012130146).

Almost surely, 2^{51381061434784} is an apocalyptic number.

It is an amenable number.

51381061434784 is an abundant number, since it is smaller than the sum of its proper divisors (51435520812224).

51381061434784 is a wasteful number, since it uses less digits than its factorization.

51381061434784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35088677 (or 35088669 counting only the distinct ones).

The product of its (nonzero) digits is 7741440, while the sum is 55.

The spelling of 51381061434784 in words is "fifty-one trillion, three hundred eighty-one billion, sixty-one million, four hundred thirty-four thousand, seven hundred eighty-four".