428288682064 has 40 divisors (see below), whose sum is σ = 839142744552. Its totient is φ = 211744727040.

The previous prime is 428288682061. The next prime is 428288682083. The reversal of 428288682064 is 460286882824.

It can be written as a sum of positive squares in 4 ways, for example, as 128444825664 + 299843856400 = 358392^2 + 547580^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428288682061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 479832 + ... + 1042504.

Almost surely, 2^428288682064 is an apocalyptic number.

It is an amenable number.

428288682064 is a deficient number, since it is larger than the sum of its proper divisors (410854062488).

428288682064 is a wasteful number, since it uses less digits than its factorization.

428288682064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 563215 (or 563209 counting only the distinct ones).

The product of its (nonzero) digits is 18874368, while the sum is 58.

The spelling of 428288682064 in words is "four hundred twenty-eight billion, two hundred eighty-eight million, six hundred eighty-two thousand, sixty-four".