13378077996 has 12 divisors (see below), whose sum is σ = 31215515352. Its totient is φ = 4459359328.

The previous prime is 13378077991. The next prime is 13378077997. The reversal of 13378077996 is 69977087331.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (13378077991) 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, 557419905 + ... + 557419928.

It is an arithmetic number, because the mean of its divisors is an integer number (2601292946).

Almost surely, 2^13378077996 is an apocalyptic number.

It is an amenable number.

13378077996 is an abundant number, since it is smaller than the sum of its proper divisors (17837437356).

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

13378077996 is a wasteful number, since it uses less digits than its factorization.

13378077996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1114839840 (or 1114839838 counting only the distinct ones).

The product of its (nonzero) digits is 12002256, while the sum is 60.

The spelling of 13378077996 in words is "thirteen billion, three hundred seventy-eight million, seventy-seven thousand, nine hundred ninety-six".