2989178774 has 16 divisors (see below), whose sum is σ = 4543987200. Its totient is φ = 1474545384.

The previous prime is 2989178771. The next prime is 2989178779. The reversal of 2989178774 is 4778719892.

It is a Smith number, since the sum of its digits (62) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2989178771) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 224039 + ... + 237005.

It is an arithmetic number, because the mean of its divisors is an integer number (283999200).

Almost surely, 2^2989178774 is an apocalyptic number.

2989178774 is a deficient number, since it is larger than the sum of its proper divisors (1554808426).

2989178774 is a wasteful number, since it uses less digits than its factorization.

2989178774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14507.

The product of its digits is 14224896, while the sum is 62.

The square root of 2989178774 is about 54673.3826829839. The cubic root of 2989178774 is about 1440.5133801583.

The spelling of 2989178774 in words is "two billion, nine hundred eighty-nine million, one hundred seventy-eight thousand, seven hundred seventy-four".