51467227778 has 18 divisors (see below), whose sum is σ = 81487548099. Its totient is φ = 24376325652.

The previous prime is 51467227771. The next prime is 51467227783. The reversal of 51467227778 is 87772276415.

It can be written as a sum of positive squares in only one way, i.e., 25733613889 + 25733613889 = 160417^2 + 160417^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=160417.

It is not an unprimeable number, because it can be changed into a prime (51467227771) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 6091625 + ... + 6100067.

Almost surely, 2^51467227778 is an apocalyptic number.

51467227778 is a deficient number, since it is larger than the sum of its proper divisors (30020320321).

51467227778 is an frugal number, since it uses more digits than its factorization.

51467227778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16926 (or 8464 counting only the distinct ones).

The product of its digits is 9219840, while the sum is 56.

The spelling of 51467227778 in words is "fifty-one billion, four hundred sixty-seven million, two hundred twenty-seven thousand, seven hundred seventy-eight".