2978319836 has 48 divisors (see below), whose sum is σ = 5535129600. Its totient is φ = 1399806912.

The previous prime is 2978319833. The next prime is 2978319853. The reversal of 2978319836 is 6389138792.

2978319836 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2978319836² = 17740778091022133792, which contains 22 as substring.

It is a Smith number, since the sum of its digits (56) coincides with the sum of the digits of its prime factors.

Its product of digits (3919104) is a multiple of the sum of its prime divisors (2016).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2978319833) 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, 1909625 + ... + 1911183.

It is an arithmetic number, because the mean of its divisors is an integer number (115315200).

Almost surely, 2^2978319836 is an apocalyptic number.

It is an amenable number.

2978319836 is a deficient number, since it is larger than the sum of its proper divisors (2556809764).

2978319836 is a wasteful number, since it uses less digits than its factorization.

2978319836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2018 (or 2016 counting only the distinct ones).

The product of its digits is 3919104, while the sum is 56.

The square root of 2978319836 is about 54573.9849745279. The cubic root of 2978319836 is about 1438.7669221639.

The spelling of 2978319836 in words is "two billion, nine hundred seventy-eight million, three hundred nineteen thousand, eight hundred thirty-six".