64604064424646 has 8 divisors (see below), whose sum is σ = 99269659969704. Its totient is φ = 31514177768080.

The previous prime is 64604064424639. The next prime is 64604064424649. The reversal of 64604064424646 is 64642446040646.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 64604064424591 and 64604064424600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64604064424649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 393927222020 + ... + 393927222183.

It is an arithmetic number, because the mean of its divisors is an integer number (12408707496213).

Almost surely, 2^{64604064424646} is an apocalyptic number.

64604064424646 is a deficient number, since it is larger than the sum of its proper divisors (34665595545058).

64604064424646 is a wasteful number, since it uses less digits than its factorization.

64604064424646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 787854444246.

The product of its (nonzero) digits is 63700992, while the sum is 56.

The spelling of 64604064424646 in words is "sixty-four trillion, six hundred four billion, sixty-four million, four hundred twenty-four thousand, six hundred forty-six".