51827695939 has 2 divisors, whose sum is σ = 51827695940. Its totient is φ = 51827695938.

The previous prime is 51827695921. The next prime is 51827695957. The reversal of 51827695939 is 93959672815.

It is a balanced prime because it is at equal distance from previous prime (51827695921) and next prime (51827695957).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51827695939 is a prime.

It is a super-2 number, since 2×51827695939² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (51827695039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25913847969 + 25913847970.

It is an arithmetic number, because the mean of its divisors is an integer number (25913847970).

Almost surely, 2^51827695939 is an apocalyptic number.

51827695939 is a deficient number, since it is larger than the sum of its proper divisors (1).

51827695939 is an equidigital number, since it uses as much as digits as its factorization.

51827695939 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36741600, while the sum is 64.

The spelling of 51827695939 in words is "fifty-one billion, eight hundred twenty-seven million, six hundred ninety-five thousand, nine hundred thirty-nine".