51785104846785 has 16 divisors (see below), whose sum is σ = 82863964769856. Its totient is φ = 27616123579968.

The previous prime is 51785104846753. The next prime is 51785104846819. The reversal of 51785104846785 is 58764840158715.

It is not a de Polignac number, because 51785104846785 - 2⁵ = 51785104846753 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 162273094 + ... + 162591903.

It is an arithmetic number, because the mean of its divisors is an integer number (5178997798116).

Almost surely, 2^{51785104846785} is an apocalyptic number.

It is an amenable number.

51785104846785 is a deficient number, since it is larger than the sum of its proper divisors (31078859923071).

51785104846785 is a wasteful number, since it uses less digits than its factorization.

51785104846785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324875632.

The product of its (nonzero) digits is 301056000, while the sum is 69.

The spelling of 51785104846785 in words is "fifty-one trillion, seven hundred eighty-five billion, one hundred four million, eight hundred forty-six thousand, seven hundred eighty-five".