297680147789 has 2 divisors, whose sum is σ = 297680147790. Its totient is φ = 297680147788.

The previous prime is 297680147777. The next prime is 297680147867. The reversal of 297680147789 is 987741086792.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 296229832900 + 1450314889 = 544270^2 + 38083^2 .

It is a cyclic number.

It is not a de Polignac number, because 297680147789 - 2⁸ = 297680147533 is a prime.

It is a super-2 number, since 2×297680147789² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (297680147389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 148840073894 + 148840073895.

It is an arithmetic number, because the mean of its divisors is an integer number (148840073895).

Almost surely, 2^297680147789 is an apocalyptic number.

It is an amenable number.

297680147789 is a deficient number, since it is larger than the sum of its proper divisors (1).

297680147789 is an equidigital number, since it uses as much as digits as its factorization.

297680147789 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 85349376, while the sum is 68.

The spelling of 297680147789 in words is "two hundred ninety-seven billion, six hundred eighty million, one hundred forty-seven thousand, seven hundred eighty-nine".