9311948779312 has 20 divisors (see below), whose sum is σ = 18047681664376. Its totient is φ = 4654482543360.

The previous prime is 9311948779297. The next prime is 9311948779319. The reversal of 9311948779312 is 2139778491139.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (9311948779319) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 93188898 + ... + 93288769.

Almost surely, 2^{9311948779312} is an apocalyptic number.

It is an amenable number.

9311948779312 is a deficient number, since it is larger than the sum of its proper divisors (8735732885064).

9311948779312 is a wasteful number, since it uses less digits than its factorization.

9311948779312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186480796 (or 186480790 counting only the distinct ones).

The product of its digits is 20575296, while the sum is 64.

The spelling of 9311948779312 in words is "nine trillion, three hundred eleven billion, nine hundred forty-eight million, seven hundred seventy-nine thousand, three hundred twelve".