51150183649 has 2 divisors, whose sum is σ = 51150183650. Its totient is φ = 51150183648.

The previous prime is 51150183607. The next prime is 51150183653. The reversal of 51150183649 is 94638105115.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25720140625 + 25430043024 = 160375^2 + 159468^2 .

It is a cyclic number.

It is not a de Polignac number, because 51150183649 - 2¹³ = 51150175457 is a prime.

It is not a weakly prime, because it can be changed into another prime (51150183349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25575091824 + 25575091825.

It is an arithmetic number, because the mean of its divisors is an integer number (25575091825).

Almost surely, 2^51150183649 is an apocalyptic number.

It is an amenable number.

51150183649 is a deficient number, since it is larger than the sum of its proper divisors (1).

51150183649 is an equidigital number, since it uses as much as digits as its factorization.

51150183649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 129600, while the sum is 43.

The spelling of 51150183649 in words is "fifty-one billion, one hundred fifty million, one hundred eighty-three thousand, six hundred forty-nine".