7387181089 has 2 divisors, whose sum is σ = 7387181090. Its totient is φ = 7387181088.

The previous prime is 7387181063. The next prime is 7387181093. The reversal of 7387181089 is 9801817837.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6904280464 + 482900625 = 83092^2 + 21975^2 .

It is a cyclic number.

It is not a de Polignac number, because 7387181089 - 2¹⁷ = 7387050017 is a prime.

It is not a weakly prime, because it can be changed into another prime (7387181489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3693590544 + 3693590545.

It is an arithmetic number, because the mean of its divisors is an integer number (3693590545).

Almost surely, 2^7387181089 is an apocalyptic number.

It is an amenable number.

7387181089 is a deficient number, since it is larger than the sum of its proper divisors (1).

7387181089 is an equidigital number, since it uses as much as digits as its factorization.

7387181089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 677376, while the sum is 52.

The square root of 7387181089 is about 85948.7119682430. The cubic root of 7387181089 is about 1947.5692780335.

The spelling of 7387181089 in words is "seven billion, three hundred eighty-seven million, one hundred eighty-one thousand, eighty-nine".