64273423241 has 2 divisors, whose sum is σ = 64273423242. Its totient is φ = 64273423240.

The previous prime is 64273423213. The next prime is 64273423261. The reversal of 64273423241 is 14232437246.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32412601225 + 31860822016 = 180035^2 + 178496^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64273423241 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 64273423195 and 64273423204.

It is not a weakly prime, because it can be changed into another prime (64273423261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32136711620 + 32136711621.

It is an arithmetic number, because the mean of its divisors is an integer number (32136711621).

Almost surely, 2^64273423241 is an apocalyptic number.

It is an amenable number.

64273423241 is a deficient number, since it is larger than the sum of its proper divisors (1).

64273423241 is an equidigital number, since it uses as much as digits as its factorization.

64273423241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 193536, while the sum is 38.

The spelling of 64273423241 in words is "sixty-four billion, two hundred seventy-three million, four hundred twenty-three thousand, two hundred forty-one".