64134379009 has 2 divisors, whose sum is σ = 64134379010. Its totient is φ = 64134379008.

The previous prime is 64134378983. The next prime is 64134379031. The reversal of 64134379009 is 90097343146.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47757546225 + 16376832784 = 218535^2 + 127972^2 .

It is a cyclic number.

It is not a de Polignac number, because 64134379009 - 2¹⁹ = 64133854721 is a prime.

It is a super-2 number, since 2×64134379009² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 64134379009.

It is not a weakly prime, because it can be changed into another prime (64134374009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32067189504 + 32067189505.

It is an arithmetic number, because the mean of its divisors is an integer number (32067189505).

Almost surely, 2^64134379009 is an apocalyptic number.

It is an amenable number.

64134379009 is a deficient number, since it is larger than the sum of its proper divisors (1).

64134379009 is an equidigital number, since it uses as much as digits as its factorization.

64134379009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 489888, while the sum is 46.

The spelling of 64134379009 in words is "sixty-four billion, one hundred thirty-four million, three hundred seventy-nine thousand, nine".