51307662299 has 2 divisors, whose sum is σ = 51307662300. Its totient is φ = 51307662298.

The previous prime is 51307662271. The next prime is 51307662319. The reversal of 51307662299 is 99226670315.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51307662299 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (51307661299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25653831149 + 25653831150.

It is an arithmetic number, because the mean of its divisors is an integer number (25653831150).

Almost surely, 2^51307662299 is an apocalyptic number.

51307662299 is a deficient number, since it is larger than the sum of its proper divisors (1).

51307662299 is an equidigital number, since it uses as much as digits as its factorization.

51307662299 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1224720, while the sum is 50.

The spelling of 51307662299 in words is "fifty-one billion, three hundred seven million, six hundred sixty-two thousand, two hundred ninety-nine".