2391051368 has 8 divisors (see below), whose sum is σ = 4483221330. Its totient is φ = 1195525680.

The previous prime is 2391051349. The next prime is 2391051379. The reversal of 2391051368 is 8631501932.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1233554884 + 1157496484 = 35122^2 + 34022^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 149440703 + ... + 149440718.

Almost surely, 2^2391051368 is an apocalyptic number.

It is an amenable number.

2391051368 is a deficient number, since it is larger than the sum of its proper divisors (2092169962).

2391051368 is a wasteful number, since it uses less digits than its factorization.

2391051368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298881427 (or 298881423 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 2391051368 is about 48898.3779690083. The cubic root of 2391051368 is about 1337.1997973928.

The spelling of 2391051368 in words is "two billion, three hundred ninety-one million, fifty-one thousand, three hundred sixty-eight".