64642510430 has 16 divisors (see below), whose sum is σ = 118328664240. Its totient is φ = 25418749632.

The previous prime is 64642510423. The next prime is 64642510447. The reversal of 64642510430 is 3401524646.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54781199 + ... + 54782378.

It is an arithmetic number, because the mean of its divisors is an integer number (7395541515).

Almost surely, 2^64642510430 is an apocalyptic number.

64642510430 is a deficient number, since it is larger than the sum of its proper divisors (53686153810).

64642510430 is a wasteful number, since it uses less digits than its factorization.

64642510430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109563643.

The product of its (nonzero) digits is 69120, while the sum is 35.

The spelling of 64642510430 in words is "sixty-four billion, six hundred forty-two million, five hundred ten thousand, four hundred thirty".