288469265890649 has 2 divisors, whose sum is σ = 288469265890650. Its totient is φ = 288469265890648.

The previous prime is 288469265890591. The next prime is 288469265890667. The reversal of 288469265890649 is 946098562964882.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 286792870201600 + 1676395689049 = 16934960^2 + 1294757^2 .

It is a cyclic number.

It is not a de Polignac number, because 288469265890649 - 2¹² = 288469265886553 is a prime.

It is not a weakly prime, because it can be changed into another prime (288469265890849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 144234632945324 + 144234632945325.

It is an arithmetic number, because the mean of its divisors is an integer number (144234632945325).

Almost surely, 2^{288469265890649} is an apocalyptic number.

It is an amenable number.

288469265890649 is a deficient number, since it is larger than the sum of its proper divisors (1).

288469265890649 is an equidigital number, since it uses as much as digits as its factorization.

288469265890649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25798901760, while the sum is 86.

The spelling of 288469265890649 in words is "two hundred eighty-eight trillion, four hundred sixty-nine billion, two hundred sixty-five million, eight hundred ninety thousand, six hundred forty-nine".