77985988482 has 32 divisors (see below), whose sum is σ = 156691135872. Its totient is φ = 25875615744.

The previous prime is 77985988463. The next prime is 77985988523. The reversal of 77985988482 is 28488958977.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2223123 + ... + 2257929.

It is an arithmetic number, because the mean of its divisors is an integer number (4896597996).

Almost surely, 2^77985988482 is an apocalyptic number.

77985988482 is an abundant number, since it is smaller than the sum of its proper divisors (78705147390).

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

77985988482 is a wasteful number, since it uses less digits than its factorization.

77985988482 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36522.

The product of its digits is 650280960, while the sum is 75.

The spelling of 77985988482 in words is "seventy-seven billion, nine hundred eighty-five million, nine hundred eighty-eight thousand, four hundred eighty-two".