2489176978 has 8 divisors (see below), whose sum is σ = 3896103168. Its totient is φ = 1190475924.

The previous prime is 2489176957. The next prime is 2489176993. The reversal of 2489176978 is 8796719842.

2489176978 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 27056226 + ... + 27056317.

It is an arithmetic number, because the mean of its divisors is an integer number (487012896).

Almost surely, 2^2489176978 is an apocalyptic number.

2489176978 is a deficient number, since it is larger than the sum of its proper divisors (1406926190).

2489176978 is a wasteful number, since it uses less digits than its factorization.

2489176978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54112568.

The product of its digits is 12192768, while the sum is 61.

The square root of 2489176978 is about 49891.6523879496. The cubic root of 2489176978 is about 1355.2474283887.

The spelling of 2489176978 in words is "two billion, four hundred eighty-nine million, one hundred seventy-six thousand, nine hundred seventy-eight".