51860284794 has 24 divisors (see below), whose sum is σ = 112402116372. Its totient is φ = 17280889920.

The previous prime is 51860284771. The next prime is 51860284799. The reversal of 51860284794 is 49748206815.

It is a happy number.

51860284794 is a `hidden beast` number, since 518 + 60 + 28 + 47 + 9 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 49343958225 + 2516326569 = 222135^2 + 50163^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 51860284794.

It is not an unprimeable number, because it can be changed into a prime (51860284799) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 434677 + ... + 540984.

Almost surely, 2^51860284794 is an apocalyptic number.

51860284794 is an abundant number, since it is smaller than the sum of its proper divisors (60541831578).

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

51860284794 is a wasteful number, since it uses less digits than its factorization.

51860284794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 978622 (or 978619 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 54.

The spelling of 51860284794 in words is "fifty-one billion, eight hundred sixty million, two hundred eighty-four thousand, seven hundred ninety-four".