2947492947493 has 8 divisors (see below), whose sum is σ = 3005312639256. Its totient is φ = 2889754982400.

The previous prime is 2947492947437. The next prime is 2947492947499. The reversal of 2947492947493 is 3947492947492.

It can be written as a sum of positive squares in 4 ways, for example, as 481189167684 + 2466303779809 = 693678^2 + 1570447^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2947492947493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2947492947499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20358828 + ... + 20503093.

It is an arithmetic number, because the mean of its divisors is an integer number (375664079907).

Almost surely, 2^{2947492947493} is an apocalyptic number.

It is an amenable number.

2947492947493 is a deficient number, since it is larger than the sum of its proper divisors (57819691763).

2947492947493 is a wasteful number, since it uses less digits than its factorization.

2947492947493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40863335.

The product of its digits is 987614208, while the sum is 73.

Subtracting 2947492947493 from its reverse (3947492947492), we obtain a palindrome (999999999999).

The spelling of 2947492947493 in words is "two trillion, nine hundred forty-seven billion, four hundred ninety-two million, nine hundred forty-seven thousand, four hundred ninety-three".