7489690841 has 2 divisors, whose sum is σ = 7489690842. Its totient is φ = 7489690840.

The previous prime is 7489690787. The next prime is 7489690853. The reversal of 7489690841 is 1480969847.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6885514441 + 604176400 = 82979^2 + 24580^2 .

It is a cyclic number.

It is not a de Polignac number, because 7489690841 - 2¹⁸ = 7489428697 is a prime.

It is not a weakly prime, because it can be changed into another prime (7489690141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3744845420 + 3744845421.

It is an arithmetic number, because the mean of its divisors is an integer number (3744845421).

Almost surely, 2^7489690841 is an apocalyptic number.

It is an amenable number.

7489690841 is a deficient number, since it is larger than the sum of its proper divisors (1).

7489690841 is an equidigital number, since it uses as much as digits as its factorization.

7489690841 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3483648, while the sum is 56.

The square root of 7489690841 is about 86542.9999537802. Note that the first 4 decimals coincide. The cubic root of 7489690841 is about 1956.5365428291.

The spelling of 7489690841 in words is "seven billion, four hundred eighty-nine million, six hundred ninety thousand, eight hundred forty-one".