2789069945 has 16 divisors (see below), whose sum is σ = 3525919680. Its totient is φ = 2112091200.

The previous prime is 2789069939. The next prime is 2789069971. The reversal of 2789069945 is 5499609872.

It is not a de Polignac number, because 2789069945 - 2¹⁰ = 2789068921 is a prime.

It is a super-2 number, since 2×2789069945² = 15557822316204606050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 111275 + ... + 134015.

It is an arithmetic number, because the mean of its divisors is an integer number (220369980).

Almost surely, 2^2789069945 is an apocalyptic number.

It is an amenable number.

2789069945 is a deficient number, since it is larger than the sum of its proper divisors (736849735).

2789069945 is a wasteful number, since it uses less digits than its factorization.

2789069945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24056.

The product of its (nonzero) digits is 9797760, while the sum is 59.

The square root of 2789069945 is about 52811.6459220881. The cubic root of 2789069945 is about 1407.6233700214.

The spelling of 2789069945 in words is "two billion, seven hundred eighty-nine million, sixty-nine thousand, nine hundred forty-five".