2978313696 has 72 divisors (see below), whose sum is σ = 8517043080. Its totient is φ = 987207936.

The previous prime is 2978313683. The next prime is 2978313697. The reversal of 2978313696 is 6963138792.

It is a tau number, because it is divible by the number of its divisors (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2978313697) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22666 + ... + 80438.

It is an arithmetic number, because the mean of its divisors is an integer number (118292265).

Almost surely, 2^2978313696 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2978313696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4258521540).

2978313696 is an abundant number, since it is smaller than the sum of its proper divisors (5538729384).

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

2978313696 is a wasteful number, since it uses less digits than its factorization.

2978313696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57968 (or 57957 counting only the distinct ones).

The product of its digits is 2939328, while the sum is 54.

The square root of 2978313696 is about 54573.9287205897. The cubic root of 2978313696 is about 1438.7659334594.

The spelling of 2978313696 in words is "two billion, nine hundred seventy-eight million, three hundred thirteen thousand, six hundred ninety-six".