51061000605605 has 8 divisors (see below), whose sum is σ = 61273358734464. Its totient is φ = 40848695146000.

The previous prime is 51061000605553. The next prime is 51061000605607. The reversal of 51061000605605 is 50650600016015.

51061000605605 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a de Polignac number, because none of the positive numbers 2^k-51061000605605 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51061000605607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11002121 + ... + 14938830.

It is an arithmetic number, because the mean of its divisors is an integer number (7659169841808).

Almost surely, 2^{51061000605605} is an apocalyptic number.

It is an amenable number.

51061000605605 is a deficient number, since it is larger than the sum of its proper divisors (10212358128859).

51061000605605 is a wasteful number, since it uses less digits than its factorization.

51061000605605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26334627.

The product of its (nonzero) digits is 27000, while the sum is 35.

The spelling of 51061000605605 in words is "fifty-one trillion, sixty-one billion, six hundred five thousand, six hundred five".