64831645427 has 2 divisors, whose sum is σ = 64831645428. Its totient is φ = 64831645426.

The previous prime is 64831645409. The next prime is 64831645441. The reversal of 64831645427 is 72454613846.

64831645427 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64831645427 - 2¹⁴ = 64831629043 is a prime.

It is not a weakly prime, because it can be changed into another prime (64831645447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32415822713 + 32415822714.

It is an arithmetic number, because the mean of its divisors is an integer number (32415822714).

Almost surely, 2^64831645427 is an apocalyptic number.

64831645427 is a deficient number, since it is larger than the sum of its proper divisors (1).

64831645427 is an equidigital number, since it uses as much as digits as its factorization.

64831645427 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3870720, while the sum is 50.

The spelling of 64831645427 in words is "sixty-four billion, eight hundred thirty-one million, six hundred forty-five thousand, four hundred twenty-seven".