7269949681 has 2 divisors, whose sum is σ = 7269949682. Its totient is φ = 7269949680.

The previous prime is 7269949663. The next prime is 7269949703. The reversal of 7269949681 is 1869499627.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3656016225 + 3613933456 = 60465^2 + 60116^2 .

It is a cyclic number.

It is not a de Polignac number, because 7269949681 - 2⁷ = 7269949553 is a prime.

It is a super-2 number, since 2×7269949681² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (7269949601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3634974840 + 3634974841.

It is an arithmetic number, because the mean of its divisors is an integer number (3634974841).

Almost surely, 2^7269949681 is an apocalyptic number.

It is an amenable number.

7269949681 is a deficient number, since it is larger than the sum of its proper divisors (1).

7269949681 is an equidigital number, since it uses as much as digits as its factorization.

7269949681 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11757312, while the sum is 61.

The square root of 7269949681 is about 85263.9999120379. Note that the first 4 decimals coincide. The cubic root of 7269949681 is about 1937.2119302330.

The spelling of 7269949681 in words is "seven billion, two hundred sixty-nine million, nine hundred forty-nine thousand, six hundred eighty-one".