7794080981 has 2 divisors, whose sum is σ = 7794080982. Its totient is φ = 7794080980.

The previous prime is 7794080963. The next prime is 7794081041. The reversal of 7794080981 is 1890804977.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7355806756 + 438274225 = 85766^2 + 20935^2 .

It is a cyclic number.

It is not a de Polignac number, because 7794080981 - 2¹⁰ = 7794079957 is a prime.

It is a super-2 number, since 2×7794080981² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7794080381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3897040490 + 3897040491.

It is an arithmetic number, because the mean of its divisors is an integer number (3897040491).

Almost surely, 2^7794080981 is an apocalyptic number.

It is an amenable number.

7794080981 is a deficient number, since it is larger than the sum of its proper divisors (1).

7794080981 is an equidigital number, since it uses as much as digits as its factorization.

7794080981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1016064, while the sum is 53.

The square root of 7794080981 is about 88284.0924572485. The cubic root of 7794080981 is about 1982.6907081295.

The spelling of 7794080981 in words is "seven billion, seven hundred ninety-four million, eighty thousand, nine hundred eighty-one".