51426004361 has 2 divisors, whose sum is σ = 51426004362. Its totient is φ = 51426004360.

The previous prime is 51426004337. The next prime is 51426004367. The reversal of 51426004361 is 16340062415.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34543939600 + 16882064761 = 185860^2 + 129931^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51426004361 is a prime.

It is not a weakly prime, because it can be changed into another prime (51426004367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25713002180 + 25713002181.

It is an arithmetic number, because the mean of its divisors is an integer number (25713002181).

Almost surely, 2^51426004361 is an apocalyptic number.

It is an amenable number.

51426004361 is a deficient number, since it is larger than the sum of its proper divisors (1).

51426004361 is an equidigital number, since it uses as much as digits as its factorization.

51426004361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17280, while the sum is 32.

Adding to 51426004361 its reverse (16340062415), we get a palindrome (67766066776).

The spelling of 51426004361 in words is "fifty-one billion, four hundred twenty-six million, four thousand, three hundred sixty-one".