9721367078912 has 48 divisors (see below), whose sum is σ = 19439941641120. Its totient is φ = 4860194861056.

The previous prime is 9721367078911. The next prime is 9721367079013. The reversal of 9721367078912 is 2198707631279.

It is not an unprimeable number, because it can be changed into a prime (9721367078911) 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, 20580293 + ... + 21047355.

It is an arithmetic number, because the mean of its divisors is an integer number (404998784190).

Almost surely, 2^{9721367078912} is an apocalyptic number.

It is an amenable number.

9721367078912 is a deficient number, since it is larger than the sum of its proper divisors (9718574562208).

9721367078912 is a wasteful number, since it uses less digits than its factorization.

9721367078912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 477248 (or 477228 counting only the distinct ones).

The product of its (nonzero) digits is 16003008, while the sum is 62.

The spelling of 9721367078912 in words is "nine trillion, seven hundred twenty-one billion, three hundred sixty-seven million, seventy-eight thousand, nine hundred twelve".