740971819661 has 2 divisors, whose sum is σ = 740971819662. Its totient is φ = 740971819660.

The previous prime is 740971819613. The next prime is 740971819673. The reversal of 740971819661 is 166918179047.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 695897982025 + 45073837636 = 834205^2 + 212306^2 .

It is a cyclic number.

It is not a de Polignac number, because 740971819661 - 2³⁰ = 739898077837 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 740971819661.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (740971819691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 370485909830 + 370485909831.

It is an arithmetic number, because the mean of its divisors is an integer number (370485909831).

Almost surely, 2^740971819661 is an apocalyptic number.

It is an amenable number.

740971819661 is a deficient number, since it is larger than the sum of its proper divisors (1).

740971819661 is an equidigital number, since it uses as much as digits as its factorization.

740971819661 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4572288, while the sum is 59.

The spelling of 740971819661 in words is "seven hundred forty billion, nine hundred seventy-one million, eight hundred nineteen thousand, six hundred sixty-one".