7619802649 has 2 divisors, whose sum is σ = 7619802650. Its totient is φ = 7619802648.

The previous prime is 7619802637. The next prime is 7619802677. The reversal of 7619802649 is 9462089167.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7050121225 + 569681424 = 83965^2 + 23868^2 .

It is a cyclic number.

It is not a de Polignac number, because 7619802649 - 2¹⁹ = 7619278361 is a prime.

It is a super-2 number, since 2×7619802649² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 7619802596 and 7619802605.

It is not a weakly prime, because it can be changed into another prime (7619802689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3809901324 + 3809901325.

It is an arithmetic number, because the mean of its divisors is an integer number (3809901325).

Almost surely, 2^7619802649 is an apocalyptic number.

It is an amenable number.

7619802649 is a deficient number, since it is larger than the sum of its proper divisors (1).

7619802649 is an equidigital number, since it uses as much as digits as its factorization.

7619802649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1306368, while the sum is 52.

The square root of 7619802649 is about 87291.4809646394. The cubic root of 7619802649 is about 1967.8012908334.

The spelling of 7619802649 in words is "seven billion, six hundred nineteen million, eight hundred two thousand, six hundred forty-nine".