7636849481 has 2 divisors, whose sum is σ = 7636849482. Its totient is φ = 7636849480.

The previous prime is 7636849477. The next prime is 7636849511. The reversal of 7636849481 is 1849486367.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7635264400 + 1585081 = 87380^2 + 1259^2 .

It is a cyclic number.

It is not a de Polignac number, because 7636849481 - 2² = 7636849477 is a prime.

It is a super-2 number, since 2×7636849481² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (7636849081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3818424740 + 3818424741.

It is an arithmetic number, because the mean of its divisors is an integer number (3818424741).

Almost surely, 2^7636849481 is an apocalyptic number.

It is an amenable number.

7636849481 is a deficient number, since it is larger than the sum of its proper divisors (1).

7636849481 is an equidigital number, since it uses as much as digits as its factorization.

7636849481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6967296, while the sum is 56.

The square root of 7636849481 is about 87389.0695739461. The cubic root of 7636849481 is about 1969.2676365042.

The spelling of 7636849481 in words is "seven billion, six hundred thirty-six million, eight hundred forty-nine thousand, four hundred eighty-one".