64134378983 has 2 divisors, whose sum is σ = 64134378984. Its totient is φ = 64134378982.

The previous prime is 64134378967. The next prime is 64134379009. The reversal of 64134378983 is 38987343146.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64134378983 - 2⁴ = 64134378967 is a prime.

It is a super-2 number, since 2×64134378983² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64134378683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32067189491 + 32067189492.

It is an arithmetic number, because the mean of its divisors is an integer number (32067189492).

Almost surely, 2^64134378983 is an apocalyptic number.

64134378983 is a deficient number, since it is larger than the sum of its proper divisors (1).

64134378983 is an equidigital number, since it uses as much as digits as its factorization.

64134378983 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10450944, while the sum is 56.

The spelling of 64134378983 in words is "sixty-four billion, one hundred thirty-four million, three hundred seventy-eight thousand, nine hundred eighty-three".