64726006012428 has 12 divisors (see below), whose sum is σ = 151027347362360. Its totient is φ = 21575335337472.

The previous prime is 64726006012361. The next prime is 64726006012439. The reversal of 64726006012428 is 82421060062746.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2696916917173 + ... + 2696916917196.

Almost surely, 2^{64726006012428} is an apocalyptic number.

It is an amenable number.

64726006012428 is an abundant number, since it is smaller than the sum of its proper divisors (86301341349932).

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

64726006012428 is a wasteful number, since it uses less digits than its factorization.

64726006012428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5393833834376 (or 5393833834374 counting only the distinct ones).

The product of its (nonzero) digits is 1548288, while the sum is 48.

The spelling of 64726006012428 in words is "sixty-four trillion, seven hundred twenty-six billion, six million, twelve thousand, four hundred twenty-eight".