4401197189887 has 2 divisors, whose sum is σ = 4401197189888. Its totient is φ = 4401197189886.

The previous prime is 4401197189867. The next prime is 4401197189927. The reversal of 4401197189887 is 7889817911044.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4401197189887 - 2²³ = 4401188801279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4401197189827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2200598594943 + 2200598594944.

It is an arithmetic number, because the mean of its divisors is an integer number (2200598594944).

Almost surely, 2^{4401197189887} is an apocalyptic number.

4401197189887 is a deficient number, since it is larger than the sum of its proper divisors (1).

4401197189887 is an equidigital number, since it uses as much as digits as its factorization.

4401197189887 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32514048, while the sum is 67.

The spelling of 4401197189887 in words is "four trillion, four hundred one billion, one hundred ninety-seven million, one hundred eighty-nine thousand, eight hundred eighty-seven".