51436866771610 has 32 divisors (see below), whose sum is σ = 96657699718800. Its totient is φ = 19683022464000.

The previous prime is 51436866771593. The next prime is 51436866771623. The reversal of 51436866771610 is 1617766863415.

It can be written as a sum of positive squares in 8 ways, for example, as 34984586959729 + 16452279811881 = 5914777^2 + 4056141^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 813585391 + ... + 813648610.

Almost surely, 2^{51436866771610} is an apocalyptic number.

51436866771610 is a deficient number, since it is larger than the sum of its proper divisors (45220832947190).

51436866771610 is a wasteful number, since it uses less digits than its factorization.

51436866771610 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1627234146.

The product of its (nonzero) digits is 30481920, while the sum is 61.

The spelling of 51436866771610 in words is "fifty-one trillion, four hundred thirty-six billion, eight hundred sixty-six million, seven hundred seventy-one thousand, six hundred ten".