51355306536867 has 12 divisors (see below), whose sum is σ = 74205653109120. Its totient is φ = 34224979075728.

The previous prime is 51355306536817. The next prime is 51355306536907. The reversal of 51355306536867 is 76863560355315.

51355306536867 is a `hidden beast` number, since 5 + 1 + 3 + 5 + 5 + 30 + 6 + 536 + 8 + 67 = 666.

It is not a de Polignac number, because 51355306536867 - 2³⁴ = 51338126667683 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51355306536817) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 990968388 + ... + 991020209.

It is an arithmetic number, because the mean of its divisors is an integer number (6183804425760).

Almost surely, 2^{51355306536867} is an apocalyptic number.

51355306536867 is a deficient number, since it is larger than the sum of its proper divisors (22850346572253).

51355306536867 is a wasteful number, since it uses less digits than its factorization.

51355306536867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1981991482 (or 1981991479 counting only the distinct ones).

The product of its (nonzero) digits is 204120000, while the sum is 63.

The spelling of 51355306536867 in words is "fifty-one trillion, three hundred fifty-five billion, three hundred six million, five hundred thirty-six thousand, eight hundred sixty-seven".