64420428071 has 8 divisors (see below), whose sum is σ = 67226130144. Its totient is φ = 61615127200.

The previous prime is 64420428011. The next prime is 64420428089. The reversal of 64420428071 is 17082402446.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64420428071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64420428011) by changing a digit.

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, 254585 + ... + 440061.

It is an arithmetic number, because the mean of its divisors is an integer number (8403266268).

Almost surely, 2^64420428071 is an apocalyptic number.

64420428071 is a deficient number, since it is larger than the sum of its proper divisors (2805702073).

64420428071 is a wasteful number, since it uses less digits than its factorization.

64420428071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200601.

The product of its (nonzero) digits is 86016, while the sum is 38.

The spelling of 64420428071 in words is "sixty-four billion, four hundred twenty million, four hundred twenty-eight thousand, seventy-one".