2978956416 has 32 divisors (see below), whose sum is σ = 7912854000. Its totient is φ = 992985344.

The previous prime is 2978956369. The next prime is 2978956423. The reversal of 2978956416 is 6146598792.

It is a tau number, because it is divible by the number of its divisors (32).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3878466 + ... + 3879233.

Almost surely, 2^2978956416 is an apocalyptic number.

It is an amenable number.

2978956416 is an abundant number, since it is smaller than the sum of its proper divisors (4933897584).

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

2978956416 is an equidigital number, since it uses as much as digits as its factorization.

2978956416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7757716 (or 7757704 counting only the distinct ones).

The product of its digits is 6531840, while the sum is 57.

The square root of 2978956416 is about 54579.8169289711. The cubic root of 2978956416 is about 1438.8694212296.

The spelling of 2978956416 in words is "two billion, nine hundred seventy-eight million, nine hundred fifty-six thousand, four hundred sixteen".