987604541111 has 2 divisors, whose sum is σ = 987604541112. Its totient is φ = 987604541110.

The previous prime is 987604541101. The next prime is 987604541149. The reversal of 987604541111 is 111145406789.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 987604541111 - 2⁶ = 987604541047 is a prime.

It is a super-2 number, since 2×987604541111² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (987604541101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 493802270555 + 493802270556.

It is an arithmetic number, because the mean of its divisors is an integer number (493802270556).

Almost surely, 2^987604541111 is an apocalyptic number.

987604541111 is a deficient number, since it is larger than the sum of its proper divisors (1).

987604541111 is an equidigital number, since it uses as much as digits as its factorization.

987604541111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 241920, while the sum is 47.

The spelling of 987604541111 in words is "nine hundred eighty-seven billion, six hundred four million, five hundred forty-one thousand, one hundred eleven".