51430994627 has 2 divisors, whose sum is σ = 51430994628. Its totient is φ = 51430994626.

The previous prime is 51430994561. The next prime is 51430994639. The reversal of 51430994627 is 72649903415.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51430994627 - 2³² = 47136027331 is a prime.

It is not a weakly prime, because it can be changed into another prime (51430994647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25715497313 + 25715497314.

It is an arithmetic number, because the mean of its divisors is an integer number (25715497314).

Almost surely, 2^51430994627 is an apocalyptic number.

51430994627 is a deficient number, since it is larger than the sum of its proper divisors (1).

51430994627 is an equidigital number, since it uses as much as digits as its factorization.

51430994627 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1632960, while the sum is 50.

The spelling of 51430994627 in words is "fifty-one billion, four hundred thirty million, nine hundred ninety-four thousand, six hundred twenty-seven".