7719100072889 has 2 divisors, whose sum is σ = 7719100072890. Its totient is φ = 7719100072888.

The previous prime is 7719100072829. The next prime is 7719100072903. The reversal of 7719100072889 is 9882700019177.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5828772061225 + 1890328011664 = 2414285^2 + 1374892^2 .

It is a cyclic number.

It is not a de Polignac number, because 7719100072889 - 2²⁴ = 7719083295673 is a prime.

It is a super-2 number, since 2×7719100072889² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (7719100072829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3859550036444 + 3859550036445.

It is an arithmetic number, because the mean of its divisors is an integer number (3859550036445).

Almost surely, 2^{7719100072889} is an apocalyptic number.

It is an amenable number.

7719100072889 is a deficient number, since it is larger than the sum of its proper divisors (1).

7719100072889 is an equidigital number, since it uses as much as digits as its factorization.

7719100072889 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3556224, while the sum is 59.

The spelling of 7719100072889 in words is "seven trillion, seven hundred nineteen billion, one hundred million, seventy-two thousand, eight hundred eighty-nine".