19024189055681 has 2 divisors, whose sum is σ = 19024189055682. Its totient is φ = 19024189055680.

The previous prime is 19024189055561. The next prime is 19024189055761. The reversal of 19024189055681 is 18655098142091.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16267871889025 + 2756317166656 = 4033345^2 + 1660216^2 .

It is a cyclic number.

It is not a de Polignac number, because 19024189055681 - 2²² = 19024184861377 is a prime.

It is a super-2 number, since 2×19024189055681² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 19024189055681.

It is not a weakly prime, because it can be changed into another prime (19024189055281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9512094527840 + 9512094527841.

It is an arithmetic number, because the mean of its divisors is an integer number (9512094527841).

Almost surely, 2^{19024189055681} is an apocalyptic number.

It is an amenable number.

19024189055681 is a deficient number, since it is larger than the sum of its proper divisors (1).

19024189055681 is an equidigital number, since it uses as much as digits as its factorization.

19024189055681 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6220800, while the sum is 59.

The spelling of 19024189055681 in words is "nineteen trillion, twenty-four billion, one hundred eighty-nine million, fifty-five thousand, six hundred eighty-one".