51038208019 has 2 divisors, whose sum is σ = 51038208020. Its totient is φ = 51038208018.

The previous prime is 51038207989. The next prime is 51038208037. The reversal of 51038208019 is 91080283015.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51038208019 - 2¹⁹ = 51037683731 is a prime.

It is a super-2 number, since 2×51038208019² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (51038208919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25519104009 + 25519104010.

It is an arithmetic number, because the mean of its divisors is an integer number (25519104010).

Almost surely, 2^51038208019 is an apocalyptic number.

51038208019 is a deficient number, since it is larger than the sum of its proper divisors (1).

51038208019 is an equidigital number, since it uses as much as digits as its factorization.

51038208019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17280, while the sum is 37.

The spelling of 51038208019 in words is "fifty-one billion, thirty-eight million, two hundred eight thousand, nineteen".