51541620468782 has 8 divisors (see below), whose sum is σ = 81381506003400. Its totient is φ = 24414451800984.

The previous prime is 51541620468773. The next prime is 51541620468803. The reversal of 51541620468782 is 28786402614515.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 678179216657 + ... + 678179216732.

It is an arithmetic number, because the mean of its divisors is an integer number (10172688250425).

Almost surely, 2^{51541620468782} is an apocalyptic number.

51541620468782 is a deficient number, since it is larger than the sum of its proper divisors (29839885534618).

51541620468782 is a wasteful number, since it uses less digits than its factorization.

51541620468782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1356358433410.

The product of its (nonzero) digits is 25804800, while the sum is 59.

The spelling of 51541620468782 in words is "fifty-one trillion, five hundred forty-one billion, six hundred twenty million, four hundred sixty-eight thousand, seven hundred eighty-two".