9778944512312 has 32 divisors (see below), whose sum is σ = 19431277142400. Its totient is φ = 4597780122624.

The previous prime is 9778944512297. The next prime is 9778944512317. The reversal of 9778944512312 is 2132154498779.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9778944512317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31690568 + ... + 31997655.

It is an arithmetic number, because the mean of its divisors is an integer number (607227410700).

Almost surely, 2^{9778944512312} is an apocalyptic number.

It is an amenable number.

9778944512312 is a deficient number, since it is larger than the sum of its proper divisors (9652332630088).

9778944512312 is a wasteful number, since it uses less digits than its factorization.

9778944512312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63689375 (or 63689371 counting only the distinct ones).

The product of its digits is 30481920, while the sum is 62.

The spelling of 9778944512312 in words is "nine trillion, seven hundred seventy-eight billion, nine hundred forty-four million, five hundred twelve thousand, three hundred twelve".