18799925356403 has 2 divisors, whose sum is σ = 18799925356404. Its totient is φ = 18799925356402.

The previous prime is 18799925356391. The next prime is 18799925356411. The reversal of 18799925356403 is 30465352999781.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18799925356403 is a prime.

It is not a weakly prime, because it can be changed into another prime (18799925356463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9399962678201 + 9399962678202.

It is an arithmetic number, because the mean of its divisors is an integer number (9399962678202).

It is a 1-persistent number, because it is pandigital, but 2⋅18799925356403 = 37599850712806 is not.

Almost surely, 2^{18799925356403} is an apocalyptic number.

18799925356403 is a deficient number, since it is larger than the sum of its proper divisors (1).

18799925356403 is an equidigital number, since it uses as much as digits as its factorization.

18799925356403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 440899200, while the sum is 71.

The spelling of 18799925356403 in words is "eighteen trillion, seven hundred ninety-nine billion, nine hundred twenty-five million, three hundred fifty-six thousand, four hundred three".