51461075885 has 16 divisors (see below), whose sum is σ = 62974146816. Its totient is φ = 40361712768.

The previous prime is 51461075881. The next prime is 51461075891. The reversal of 51461075885 is 58857016415.

It is a cyclic number.

It is not a de Polignac number, because 51461075885 - 2² = 51461075881 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 (51461075881) 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 15 ways as a sum of consecutive naturals, for example, 361169 + ... + 483078.

It is an arithmetic number, because the mean of its divisors is an integer number (3935884176).

Almost surely, 2^51461075885 is an apocalyptic number.

It is an amenable number.

51461075885 is a deficient number, since it is larger than the sum of its proper divisors (11513070931).

51461075885 is a wasteful number, since it uses less digits than its factorization.

51461075885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 844492.

The product of its (nonzero) digits is 1344000, while the sum is 50.

The spelling of 51461075885 in words is "fifty-one billion, four hundred sixty-one million, seventy-five thousand, eight hundred eighty-five".