773145885656 has 8 divisors (see below), whose sum is σ = 1449648535620. Its totient is φ = 386572942824.

The previous prime is 773145885619. The next prime is 773145885671. The reversal of 773145885656 is 656588541377.

773145885656 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 773145885592 and 773145885601.

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, 48321617846 + ... + 48321617861.

Almost surely, 2^773145885656 is an apocalyptic number.

It is an amenable number.

773145885656 is a deficient number, since it is larger than the sum of its proper divisors (676502649964).

773145885656 is a wasteful number, since it uses less digits than its factorization.

773145885656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96643235713 (or 96643235709 counting only the distinct ones).

The product of its digits is 169344000, while the sum is 65.

The spelling of 773145885656 in words is "seven hundred seventy-three billion, one hundred forty-five million, eight hundred eighty-five thousand, six hundred fifty-six".