2493718761 has 8 divisors (see below), whose sum is σ = 3374584864. Its totient is φ = 1637665920.

The previous prime is 2493718757. The next prime is 2493718789. The reversal of 2493718761 is 1678173942.

It is a happy number.

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

It is not a de Polignac number, because 2493718761 - 2² = 2493718757 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 2493718761.

It is not an unprimeable number, because it can be changed into a prime (2493717761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6203080 + ... + 6203481.

It is an arithmetic number, because the mean of its divisors is an integer number (421823108).

Almost surely, 2^2493718761 is an apocalyptic number.

It is an amenable number.

2493718761 is a deficient number, since it is larger than the sum of its proper divisors (880866103).

2493718761 is a wasteful number, since it uses less digits than its factorization.

2493718761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12406631.

The product of its digits is 508032, while the sum is 48.

The square root of 2493718761 is about 49937.1481063947. The cubic root of 2493718761 is about 1356.0711946287.

The spelling of 2493718761 in words is "two billion, four hundred ninety-three million, seven hundred eighteen thousand, seven hundred sixty-one".