2978069888 has 32 divisors (see below), whose sum is σ = 5958840000. Its totient is φ = 1482518016.

The previous prime is 2978069869. The next prime is 2978069909. The reversal of 2978069888 is 8889608792.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21488 + ... + 80111.

It is an arithmetic number, because the mean of its divisors is an integer number (186213750).

Almost surely, 2^2978069888 is an apocalyptic number.

It is an amenable number.

2978069888 is an abundant number, since it is smaller than the sum of its proper divisors (2980770112).

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

2978069888 is a wasteful number, since it uses less digits than its factorization.

2978069888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101842 (or 101830 counting only the distinct ones).

The product of its (nonzero) digits is 27869184, while the sum is 65.

The square root of 2978069888 is about 54571.6949342789. The cubic root of 2978069888 is about 1438.7266727397.

The spelling of 2978069888 in words is "two billion, nine hundred seventy-eight million, sixty-nine thousand, eight hundred eighty-eight".