64608621279008 has 48 divisors (see below), whose sum is σ = 130381897171680. Its totient is φ = 31498362556416.

The previous prime is 64608621278909. The next prime is 64608621279023. The reversal of 64608621279008 is 80097212680646.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39894038 + ... + 41481941.

It is an arithmetic number, because the mean of its divisors is an integer number (2716289524410).

Almost surely, 2^{64608621279008} is an apocalyptic number.

It is an amenable number.

64608621279008 is an abundant number, since it is smaller than the sum of its proper divisors (65773275892672).

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

64608621279008 is a wasteful number, since it uses less digits than its factorization.

64608621279008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81376609 (or 81376601 counting only the distinct ones).

The product of its (nonzero) digits is 13934592, while the sum is 59.

The spelling of 64608621279008 in words is "sixty-four trillion, six hundred eight billion, six hundred twenty-one million, two hundred seventy-nine thousand, eight".