51846778372827 has 16 divisors (see below), whose sum is σ = 69286106211840. Its totient is φ = 34486023684672.

The previous prime is 51846778372819. The next prime is 51846778372847. The reversal of 51846778372827 is 72827387764815.

It is not a de Polignac number, because 51846778372827 - 2³ = 51846778372819 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51846778372847) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 457258 + ... + 10193264.

It is an arithmetic number, because the mean of its divisors is an integer number (4330381638240).

Almost surely, 2^{51846778372827} is an apocalyptic number.

51846778372827 is a deficient number, since it is larger than the sum of its proper divisors (17439327839013).

51846778372827 is a wasteful number, since it uses less digits than its factorization.

51846778372827 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9740042.

The product of its digits is 1770209280, while the sum is 75.

The spelling of 51846778372827 in words is "fifty-one trillion, eight hundred forty-six billion, seven hundred seventy-eight million, three hundred seventy-two thousand, eight hundred twenty-seven".