7880492657 has 2 divisors, whose sum is σ = 7880492658. Its totient is φ = 7880492656.

The previous prime is 7880492651. The next prime is 7880492663. The reversal of 7880492657 is 7562940887.

It is a balanced prime because it is at equal distance from previous prime (7880492651) and next prime (7880492663).

It can be written as a sum of positive squares in only one way, i.e., 7397548081 + 482944576 = 86009^2 + 21976^2 .

It is an emirp because it is prime and its reverse (7562940887) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7880492657 - 2¹⁴ = 7880476273 is a prime.

It is not a weakly prime, because it can be changed into another prime (7880492651) 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, 3940246328 + 3940246329.

It is an arithmetic number, because the mean of its divisors is an integer number (3940246329).

Almost surely, 2^7880492657 is an apocalyptic number.

It is an amenable number.

7880492657 is a deficient number, since it is larger than the sum of its proper divisors (1).

7880492657 is an equidigital number, since it uses as much as digits as its factorization.

7880492657 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6773760, while the sum is 56.

The square root of 7880492657 is about 88772.1389682596. The cubic root of 7880492657 is about 1989.9910487548.

The spelling of 7880492657 in words is "seven billion, eight hundred eighty million, four hundred ninety-two thousand, six hundred fifty-seven".