2068619491 has 8 divisors (see below), whose sum is σ = 2135988224. Its totient is φ = 2001290760.

The previous prime is 2068619489. The next prime is 2068619519. The reversal of 2068619491 is 1949168602.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 2068619491 - 2¹ = 2068619489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2068619401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123670 + ... + 139396.

It is an arithmetic number, because the mean of its divisors is an integer number (266998528).

Almost surely, 2^2068619491 is an apocalyptic number.

2068619491 is a deficient number, since it is larger than the sum of its proper divisors (67368733).

2068619491 is a wasteful number, since it uses less digits than its factorization.

2068619491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20001.

The product of its (nonzero) digits is 186624, while the sum is 46.

The square root of 2068619491 is about 45482.0787893430. The cubic root of 2068619491 is about 1274.1685192099.

The spelling of 2068619491 in words is "two billion, sixty-eight million, six hundred nineteen thousand, four hundred ninety-one".