64148868929 has 2 divisors, whose sum is σ = 64148868930. Its totient is φ = 64148868928.

The previous prime is 64148868899. The next prime is 64148868941. The reversal of 64148868929 is 92986884146.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51413295025 + 12735573904 = 226745^2 + 112852^2 .

It is a cyclic number.

It is not a de Polignac number, because 64148868929 - 2³² = 59853901633 is a prime.

It is not a weakly prime, because it can be changed into another prime (64148868029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32074434464 + 32074434465.

It is an arithmetic number, because the mean of its divisors is an integer number (32074434465).

Almost surely, 2^64148868929 is an apocalyptic number.

It is an amenable number.

64148868929 is a deficient number, since it is larger than the sum of its proper divisors (1).

64148868929 is an equidigital number, since it uses as much as digits as its factorization.

64148868929 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 47775744, while the sum is 65.

The spelling of 64148868929 in words is "sixty-four billion, one hundred forty-eight million, eight hundred sixty-eight thousand, nine hundred twenty-nine".