2391061768 has 16 divisors (see below), whose sum is σ = 4506716160. Its totient is φ = 1189270800.

The previous prime is 2391061727. The next prime is 2391061819. The reversal of 2391061768 is 8671601932.

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, 780888 + ... + 783943.

It is an arithmetic number, because the mean of its divisors is an integer number (281669760).

Almost surely, 2^2391061768 is an apocalyptic number.

It is an amenable number.

2391061768 is a deficient number, since it is larger than the sum of its proper divisors (2115654392).

2391061768 is a wasteful number, since it uses less digits than its factorization.

2391061768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1565028 (or 1565024 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 43.

The square root of 2391061768 is about 48898.4843118884. The cubic root of 2391061768 is about 1337.2017361296.

The spelling of 2391061768 in words is "two billion, three hundred ninety-one million, sixty-one thousand, seven hundred sixty-eight".