51822464228 has 6 divisors (see below), whose sum is σ = 90689312406. Its totient is φ = 25911232112.

The previous prime is 51822464227. The next prime is 51822464249. The reversal of 51822464228 is 82246422815.

It can be written as a sum of positive squares in only one way, i.e., 47127199744 + 4695264484 = 217088^2 + 68522^2 .

It is not an unprimeable number, because it can be changed into a prime (51822464227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6477808025 + ... + 6477808032.

It is an arithmetic number, because the mean of its divisors is an integer number (15114885401).

Almost surely, 2^51822464228 is an apocalyptic number.

It is an amenable number.

51822464228 is a deficient number, since it is larger than the sum of its proper divisors (38866848178).

51822464228 is a wasteful number, since it uses less digits than its factorization.

51822464228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12955616061 (or 12955616059 counting only the distinct ones).

The product of its digits is 491520, while the sum is 44.

The spelling of 51822464228 in words is "fifty-one billion, eight hundred twenty-two million, four hundred sixty-four thousand, two hundred twenty-eight".