51064675019 has 2 divisors, whose sum is σ = 51064675020. Its totient is φ = 51064675018.

The previous prime is 51064675007. The next prime is 51064675093. The reversal of 51064675019 is 91057646015.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51064675019 is a prime.

It is a super-2 number, since 2×51064675019² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (51064675619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25532337509 + 25532337510.

It is an arithmetic number, because the mean of its divisors is an integer number (25532337510).

Almost surely, 2^51064675019 is an apocalyptic number.

51064675019 is a deficient number, since it is larger than the sum of its proper divisors (1).

51064675019 is an equidigital number, since it uses as much as digits as its factorization.

51064675019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 226800, while the sum is 44.

The spelling of 51064675019 in words is "fifty-one billion, sixty-four million, six hundred seventy-five thousand, nineteen".