2654939890 has 8 divisors (see below), whose sum is σ = 4778891820. Its totient is φ = 1061975952.

The previous prime is 2654939873. The next prime is 2654939891. The reversal of 2654939890 is 989394562.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2641857201 + 13082689 = 51399^2 + 3617^2 .

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

It is not an unprimeable number, because it can be changed into a prime (2654939891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 132746985 + ... + 132747004.

Almost surely, 2^2654939890 is an apocalyptic number.

2654939890 is a deficient number, since it is larger than the sum of its proper divisors (2123951930).

2654939890 is a wasteful number, since it uses less digits than its factorization.

2654939890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265493996.

The product of its (nonzero) digits is 4199040, while the sum is 55.

The square root of 2654939890 is about 51526.1088187338. The cubic root of 2654939890 is about 1384.6868385355.

The spelling of 2654939890 in words is "two billion, six hundred fifty-four million, nine hundred thirty-nine thousand, eight hundred ninety".