77771103360448 has 14 divisors (see below), whose sum is σ = 154327033231016. Its totient is φ = 38885551680192.

The previous prime is 77771103360413. The next prime is 77771103360451. The reversal of 77771103360448 is 84406330117777.

It is a junction number, because it is equal to n+sod(n) for n = 77771103360392 and 77771103360401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 607586744940 + ... + 607586745067.

Almost surely, 2^{77771103360448} is an apocalyptic number.

It is an amenable number.

77771103360448 is a deficient number, since it is larger than the sum of its proper divisors (76555929870568).

77771103360448 is a wasteful number, since it uses less digits than its factorization.

77771103360448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1215173490019 (or 1215173490009 counting only the distinct ones).

The product of its (nonzero) digits is 16595712, while the sum is 58.

The spelling of 77771103360448 in words is "seventy-seven trillion, seven hundred seventy-one billion, one hundred three million, three hundred sixty thousand, four hundred forty-eight".