68900450025559 has 2 divisors, whose sum is σ = 68900450025560. Its totient is φ = 68900450025558.

The previous prime is 68900450025457. The next prime is 68900450025577. The reversal of 68900450025559 is 95552005400986.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68900450025559 - 2⁹ = 68900450025047 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68900450029559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34450225012779 + 34450225012780.

It is an arithmetic number, because the mean of its divisors is an integer number (34450225012780).

Almost surely, 2^{68900450025559} is an apocalyptic number.

68900450025559 is a deficient number, since it is larger than the sum of its proper divisors (1).

68900450025559 is an equidigital number, since it uses as much as digits as its factorization.

68900450025559 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19440000, while the sum is 58.

The spelling of 68900450025559 in words is "sixty-eight trillion, nine hundred billion, four hundred fifty million, twenty-five thousand, five hundred fifty-nine".