51081665031882 has 24 divisors (see below), whose sum is σ = 110677074640704. Its totient is φ = 17027201102184.

The previous prime is 51081665031811. The next prime is 51081665031941. The reversal of 51081665031882 is 28813056618015.

51081665031882 is a `hidden beast` number, since 5 + 108 + 16 + 6 + 503 + 18 + 8 + 2 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24098143 + ... + 26132045.

It is an arithmetic number, because the mean of its divisors is an integer number (4611544776696).

Almost surely, 2^{51081665031882} is an apocalyptic number.

51081665031882 is an abundant number, since it is smaller than the sum of its proper divisors (59595409608822).

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

51081665031882 is a wasteful number, since it uses less digits than its factorization.

51081665031882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3429194 (or 3429191 counting only the distinct ones).

The product of its (nonzero) digits is 2764800, while the sum is 54.

The spelling of 51081665031882 in words is "fifty-one trillion, eighty-one billion, six hundred sixty-five million, thirty-one thousand, eight hundred eighty-two".