87106611019 has 2 divisors, whose sum is σ = 87106611020. Its totient is φ = 87106611018.

The previous prime is 87106611013. The next prime is 87106611037. The reversal of 87106611019 is 91011660178.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 87106611019 - 2¹¹ = 87106608971 is a prime.

It is a super-2 number, since 2×87106611019² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (87106611013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43553305509 + 43553305510.

It is an arithmetic number, because the mean of its divisors is an integer number (43553305510).

Almost surely, 2^87106611019 is an apocalyptic number.

87106611019 is a deficient number, since it is larger than the sum of its proper divisors (1).

87106611019 is an equidigital number, since it uses as much as digits as its factorization.

87106611019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 40.

The spelling of 87106611019 in words is "eighty-seven billion, one hundred six million, six hundred eleven thousand, nineteen".