51461020327 has 2 divisors, whose sum is σ = 51461020328. Its totient is φ = 51461020326.

The previous prime is 51461020283. The next prime is 51461020343. The reversal of 51461020327 is 72302016415.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51461020327 - 2⁷ = 51461020199 is a prime.

It is a super-2 number, since 2×51461020327² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51461026327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25730510163 + 25730510164.

It is an arithmetic number, because the mean of its divisors is an integer number (25730510164).

Almost surely, 2^51461020327 is an apocalyptic number.

51461020327 is a deficient number, since it is larger than the sum of its proper divisors (1).

51461020327 is an equidigital number, since it uses as much as digits as its factorization.

51461020327 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10080, while the sum is 31.

The spelling of 51461020327 in words is "fifty-one billion, four hundred sixty-one million, twenty thousand, three hundred twenty-seven".