2801968389 has 32 divisors (see below), whose sum is σ = 4542871680. Its totient is φ = 1692748800.

The previous prime is 2801968343. The next prime is 2801968391. The reversal of 2801968389 is 9838691082.

It is a happy number.

It is not a de Polignac number, because 2801968389 - 2⁹ = 2801967877 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2801968189) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 79269 + ... + 109029.

It is an arithmetic number, because the mean of its divisors is an integer number (141964740).

Almost surely, 2^2801968389 is an apocalyptic number.

It is an amenable number.

2801968389 is a deficient number, since it is larger than the sum of its proper divisors (1740903291).

2801968389 is a wasteful number, since it uses less digits than its factorization.

2801968389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30098 (or 30092 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 54.

The square root of 2801968389 is about 52933.6224813681. The cubic root of 2801968389 is about 1409.7899506025.

The spelling of 2801968389 in words is "two billion, eight hundred one million, nine hundred sixty-eight thousand, three hundred eighty-nine".