64134543027 has 64 divisors (see below), whose sum is σ = 91010304000. Its totient is φ = 40129689600.

The previous prime is 64134543013. The next prime is 64134543029. The reversal of 64134543027 is 72034543146.

It is not a de Polignac number, because 64134543027 - 2⁶ = 64134542963 is a prime.

It is a super-2 number, since 2×64134543027² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (64134543029) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 70399702 + ... + 70400612.

It is an arithmetic number, because the mean of its divisors is an integer number (1422036000).

Almost surely, 2^64134543027 is an apocalyptic number.

64134543027 is a deficient number, since it is larger than the sum of its proper divisors (26875760973).

64134543027 is a wasteful number, since it uses less digits than its factorization.

64134543027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1212.

The product of its (nonzero) digits is 241920, while the sum is 39.

The spelling of 64134543027 in words is "sixty-four billion, one hundred thirty-four million, five hundred forty-three thousand, twenty-seven".