2689063945 has 8 divisors (see below), whose sum is σ = 3281569920. Its totient is φ = 2114789040.

The previous prime is 2689063931. The next prime is 2689063957. The reversal of 2689063945 is 5493609862.

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

It is not a de Polignac number, because 2689063945 - 2⁵ = 2689063913 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2689063892 and 2689063901.

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 7 ways as a sum of consecutive naturals, for example, 4557441 + ... + 4558030.

It is an arithmetic number, because the mean of its divisors is an integer number (410196240).

Almost surely, 2^2689063945 is an apocalyptic number.

It is an amenable number.

2689063945 is a deficient number, since it is larger than the sum of its proper divisors (592505975).

2689063945 is an equidigital number, since it uses as much as digits as its factorization.

2689063945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9115535.

The product of its (nonzero) digits is 2799360, while the sum is 52.

The square root of 2689063945 is about 51856.1852144949. The cubic root of 2689063945 is about 1390.5940812349.

The spelling of 2689063945 in words is "two billion, six hundred eighty-nine million, sixty-three thousand, nine hundred forty-five".