65628532078 has 8 divisors (see below), whose sum is σ = 98444069640. Its totient is φ = 32813842200.

The previous prime is 65628532061. The next prime is 65628532087. The reversal of 65628532078 is 87023582656.

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

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 3 ways as a sum of consecutive naturals, for example, 42928 + ... + 364828.

It is an arithmetic number, because the mean of its divisors is an integer number (12305508705).

Almost surely, 2^65628532078 is an apocalyptic number.

65628532078 is a deficient number, since it is larger than the sum of its proper divisors (32815537562).

65628532078 is a wasteful number, since it uses less digits than its factorization.

65628532078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423842.

The product of its (nonzero) digits is 4838400, while the sum is 52.

The spelling of 65628532078 in words is "sixty-five billion, six hundred twenty-eight million, five hundred thirty-two thousand, seventy-eight".