77444603152 has 20 divisors (see below), whose sum is σ = 171484478656. Its totient is φ = 33190544160.

The previous prime is 77444603123. The next prime is 77444603167. The reversal of 77444603152 is 25130644477.

It is a junction number, because it is equal to n+sod(n) for n = 77444603099 and 77444603108.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 345734724 + ... + 345734947.

Almost surely, 2^77444603152 is an apocalyptic number.

It is an amenable number.

77444603152 is an abundant number, since it is smaller than the sum of its proper divisors (94039875504).

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

77444603152 is a wasteful number, since it uses less digits than its factorization.

77444603152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 691469686 (or 691469680 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 43.

The spelling of 77444603152 in words is "seventy-seven billion, four hundred forty-four million, six hundred three thousand, one hundred fifty-two".