64411544634 has 32 divisors (see below), whose sum is σ = 135142266240. Its totient is φ = 20438174400.

The previous prime is 64411544627. The next prime is 64411544707. The reversal of 64411544634 is 43644511446.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2594557 + ... + 2619264.

It is an arithmetic number, because the mean of its divisors is an integer number (4223195820).

Almost surely, 2^64411544634 is an apocalyptic number.

64411544634 is an abundant number, since it is smaller than the sum of its proper divisors (70730721606).

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

64411544634 is a wasteful number, since it uses less digits than its factorization.

64411544634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5213926.

The product of its digits is 552960, while the sum is 42.

The spelling of 64411544634 in words is "sixty-four billion, four hundred eleven million, five hundred forty-four thousand, six hundred thirty-four".