7969378456320 has 144 divisors (see below), whose sum is σ = 25453617649152. Its totient is φ = 2125049425920.

The previous prime is 7969378456267. The next prime is 7969378456321. The reversal of 7969378456320 is 236548739697.

It is a super-2 number, since 2×7969378456320² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7969378456321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85550889 + ... + 85643991.

Almost surely, 2^{7969378456320} is an apocalyptic number.

It is an amenable number.

7969378456320 is an abundant number, since it is smaller than the sum of its proper divisors (17484239192832).

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

7969378456320 is a wasteful number, since it uses less digits than its factorization.

7969378456320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115418 (or 115404 counting only the distinct ones).

The product of its (nonzero) digits is 411505920, while the sum is 69.

The spelling of 7969378456320 in words is "seven trillion, nine hundred sixty-nine billion, three hundred seventy-eight million, four hundred fifty-six thousand, three hundred twenty".