2718236993 has 2 divisors, whose sum is σ = 2718236994. Its totient is φ = 2718236992.

The previous prime is 2718236987. The next prime is 2718236999. The reversal of 2718236993 is 3996328172.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (2718236987) and next prime (2718236999).

It can be written as a sum of positive squares in only one way, i.e., 2155930624 + 562306369 = 46432^2 + 23713^2 .

It is a cyclic number.

It is not a de Polignac number, because 2718236993 - 2¹⁸ = 2717974849 is a prime.

It is a super-2 number, since 2×2718236993² = 14777624700227364098, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2718236999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1359118496 + 1359118497.

It is an arithmetic number, because the mean of its divisors is an integer number (1359118497).

Almost surely, 2^2718236993 is an apocalyptic number.

It is an amenable number.

2718236993 is a deficient number, since it is larger than the sum of its proper divisors (1).

2718236993 is an equidigital number, since it uses as much as digits as its factorization.

2718236993 is an evil number, because the sum of its binary digits is even.

The product of its digits is 979776, while the sum is 50.

The square root of 2718236993 is about 52136.7144438542. The cubic root of 2718236993 is about 1395.6047519465.

The spelling of 2718236993 in words is "two billion, seven hundred eighteen million, two hundred thirty-six thousand, nine hundred ninety-three".