2068947493 has 4 divisors (see below), whose sum is σ = 2140290540. Its totient is φ = 1997604448.

The previous prime is 2068947467. The next prime is 2068947509. The reversal of 2068947493 is 3947498602.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 484748289 + 1584199204 = 22017^2 + 39802^2 .

It is a de Polignac number, because none of the positive numbers 2^k-2068947493 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2068947493.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2068942493) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35671480 + ... + 35671537.

It is an arithmetic number, because the mean of its divisors is an integer number (535072635).

Almost surely, 2^2068947493 is an apocalyptic number.

It is an amenable number.

2068947493 is a deficient number, since it is larger than the sum of its proper divisors (71343047).

2068947493 is an equidigital number, since it uses as much as digits as its factorization.

2068947493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71343046.

The product of its (nonzero) digits is 2612736, while the sum is 52.

The square root of 2068947493 is about 45485.6844842419. The cubic root of 2068947493 is about 1274.2358600520.

The spelling of 2068947493 in words is "two billion, sixty-eight million, nine hundred forty-seven thousand, four hundred ninety-three".