64628424004 has 6 divisors (see below), whose sum is σ = 113099742014. Its totient is φ = 32314212000.

The previous prime is 64628423999. The next prime is 64628424053. The reversal of 64628424004 is 40042482646.

It is a happy number.

64628424004 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 39900861504 + 24727562500 = 199752^2 + 157250^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8078552997 + ... + 8078553004.

Almost surely, 2^64628424004 is an apocalyptic number.

It is an amenable number.

64628424004 is a deficient number, since it is larger than the sum of its proper divisors (48471318010).

64628424004 is a wasteful number, since it uses less digits than its factorization.

64628424004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16157106005 (or 16157106003 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 40.

The spelling of 64628424004 in words is "sixty-four billion, six hundred twenty-eight million, four hundred twenty-four thousand, four".