64546516434 has 32 divisors (see below), whose sum is σ = 133562520000. Its totient is φ = 20770791104.

The previous prime is 64546516409. The next prime is 64546516477. The reversal of 64546516434 is 43461564546.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 1555792 + ... + 1596740.

It is an arithmetic number, because the mean of its divisors is an integer number (4173828750).

Almost surely, 2^64546516434 is an apocalyptic number.

64546516434 is an abundant number, since it is smaller than the sum of its proper divisors (69016003566).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64546516434 is a wasteful number, since it uses less digits than its factorization.

64546516434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50042.

The product of its digits is 4147200, while the sum is 48.

The spelling of 64546516434 in words is "sixty-four billion, five hundred forty-six million, five hundred sixteen thousand, four hundred thirty-four".