773536812648 has 64 divisors (see below), whose sum is σ = 2044912504320. Its totient is φ = 243441945600.

The previous prime is 773536812641. The next prime is 773536812661. The reversal of 773536812648 is 846218635377.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 773536812591 and 773536812600.

It is not an unprimeable number, because it can be changed into a prime (773536812641) by changing a digit.

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, 12648765 + ... + 12709772.

It is an arithmetic number, because the mean of its divisors is an integer number (31951757880).

Almost surely, 2^773536812648 is an apocalyptic number.

It is an amenable number.

773536812648 is an abundant number, since it is smaller than the sum of its proper divisors (1271375691672).

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

773536812648 is a wasteful number, since it uses less digits than its factorization.

773536812648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25358618 (or 25358614 counting only the distinct ones).

The product of its digits is 40642560, while the sum is 60.

It can be divided in two parts, 7735368 and 12648, that added together give a triangular number (7748016 = T₃₉₃₆).

The spelling of 773536812648 in words is "seven hundred seventy-three billion, five hundred thirty-six million, eight hundred twelve thousand, six hundred forty-eight".