78589011456 has 80 divisors (see below), whose sum is σ = 232628972400. Its totient is φ = 26196332544.

The previous prime is 78589011377. The next prime is 78589011467. The reversal of 78589011456 is 65411098587.

It is a happy number.

78589011456 is a `hidden beast` number, since 7 + 8 + 589 + 0 + 1 + 1 + 4 + 56 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2828661 + ... + 2856308.

It is an arithmetic number, because the mean of its divisors is an integer number (2907862155).

Almost surely, 2^78589011456 is an apocalyptic number.

It is an amenable number.

78589011456 is an abundant number, since it is smaller than the sum of its proper divisors (154039960944).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

78589011456 is an equidigital number, since it uses as much as digits as its factorization.

78589011456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5684996 (or 5684974 counting only the distinct ones).

The product of its (nonzero) digits is 2419200, while the sum is 54.

The spelling of 78589011456 in words is "seventy-eight billion, five hundred eighty-nine million, eleven thousand, four hundred fifty-six".