64841254147 has 2 divisors, whose sum is σ = 64841254148. Its totient is φ = 64841254146.

The previous prime is 64841254139. The next prime is 64841254187. The reversal of 64841254147 is 74145214846.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64841254147 - 2³ = 64841254139 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 64841254097 and 64841254106.

It is not a weakly prime, because it can be changed into another prime (64841254187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32420627073 + 32420627074.

It is an arithmetic number, because the mean of its divisors is an integer number (32420627074).

Almost surely, 2^64841254147 is an apocalyptic number.

64841254147 is a deficient number, since it is larger than the sum of its proper divisors (1).

64841254147 is an equidigital number, since it uses as much as digits as its factorization.

64841254147 is an evil number, because the sum of its binary digits is even.

The product of its digits is 860160, while the sum is 46.

The spelling of 64841254147 in words is "sixty-four billion, eight hundred forty-one million, two hundred fifty-four thousand, one hundred forty-seven".