2718989473 has 2 divisors, whose sum is σ = 2718989474. Its totient is φ = 2718989472.

The previous prime is 2718989461. The next prime is 2718989491. The reversal of 2718989473 is 3749898172.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1799201889 + 919787584 = 42417^2 + 30328^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2718989473 is a prime.

It is not a weakly prime, because it can be changed into another prime (2718989423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1359494736 + 1359494737.

It is an arithmetic number, because the mean of its divisors is an integer number (1359494737).

Almost surely, 2^2718989473 is an apocalyptic number.

It is an amenable number.

2718989473 is a deficient number, since it is larger than the sum of its proper divisors (1).

2718989473 is an equidigital number, since it uses as much as digits as its factorization.

2718989473 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6096384, while the sum is 58.

The square root of 2718989473 is about 52143.9303562744. The cubic root of 2718989473 is about 1395.7335201857.

The spelling of 2718989473 in words is "two billion, seven hundred eighteen million, nine hundred eighty-nine thousand, four hundred seventy-three".