7147987369 has 2 divisors, whose sum is σ = 7147987370. Its totient is φ = 7147987368.

The previous prime is 7147987351. The next prime is 7147987523. The reversal of 7147987369 is 9637897417.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6438457600 + 709529769 = 80240^2 + 26637^2 .

It is a cyclic number.

It is not a de Polignac number, because 7147987369 - 2¹¹ = 7147985321 is a prime.

It is a super-2 number, since 2×7147987369² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (7147997369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3573993684 + 3573993685.

It is an arithmetic number, because the mean of its divisors is an integer number (3573993685).

Almost surely, 2^7147987369 is an apocalyptic number.

It is an amenable number.

7147987369 is a deficient number, since it is larger than the sum of its proper divisors (1).

7147987369 is an equidigital number, since it uses as much as digits as its factorization.

7147987369 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16003008, while the sum is 61.

The square root of 7147987369 is about 84545.7708522431. The cubic root of 7147987369 is about 1926.3177456517.

The spelling of 7147987369 in words is "seven billion, one hundred forty-seven million, nine hundred eighty-seven thousand, three hundred sixty-nine".