51870883219 has 2 divisors, whose sum is σ = 51870883220. Its totient is φ = 51870883218.

The previous prime is 51870883199. The next prime is 51870883237. The reversal of 51870883219 is 91238807815.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51870883219 - 2¹⁷ = 51870752147 is a prime.

It is a super-2 number, since 2×51870883219² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (51870883249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25935441609 + 25935441610.

It is an arithmetic number, because the mean of its divisors is an integer number (25935441610).

Almost surely, 2^51870883219 is an apocalyptic number.

51870883219 is a deficient number, since it is larger than the sum of its proper divisors (1).

51870883219 is an equidigital number, since it uses as much as digits as its factorization.

51870883219 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 967680, while the sum is 52.

It can be divided in two parts, 51870 and 883219, that added together give a square (935089 = 967²).

The spelling of 51870883219 in words is "fifty-one billion, eight hundred seventy million, eight hundred eighty-three thousand, two hundred nineteen".