65031421027 has 2 divisors, whose sum is σ = 65031421028. Its totient is φ = 65031421026.

The previous prime is 65031421003. The next prime is 65031421073. The reversal of 65031421027 is 72012413056.

65031421027 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 65031421027 - 2⁷ = 65031420899 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 65031421027.

It is not a weakly prime, because it can be changed into another prime (65031421927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32515710513 + 32515710514.

It is an arithmetic number, because the mean of its divisors is an integer number (32515710514).

Almost surely, 2^65031421027 is an apocalyptic number.

65031421027 is a deficient number, since it is larger than the sum of its proper divisors (1).

65031421027 is an equidigital number, since it uses as much as digits as its factorization.

65031421027 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 65031421027 in words is "sixty-five billion, thirty-one million, four hundred twenty-one thousand, twenty-seven".