51674052242 has 6 divisors (see below), whose sum is σ = 77511560583. Its totient is φ = 25836865382.

The previous prime is 51674052239. The next prime is 51674052277. The reversal of 51674052242 is 24225047615.

It can be written as a sum of positive squares in only one way, i.e., 25837026121 + 25837026121 = 160739^2 + 160739^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=160739.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51674052196 and 51674052205.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 241109 + ... + 401847.

Almost surely, 2^51674052242 is an apocalyptic number.

51674052242 is a deficient number, since it is larger than the sum of its proper divisors (25837508341).

51674052242 is an frugal number, since it uses more digits than its factorization.

51674052242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321480 (or 160741 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 38.

Adding to 51674052242 its reverse (24225047615), we get a palindrome (75899099857).

The spelling of 51674052242 in words is "fifty-one billion, six hundred seventy-four million, fifty-two thousand, two hundred forty-two".