87989099071 has 2 divisors, whose sum is σ = 87989099072. Its totient is φ = 87989099070.

The previous prime is 87989098963. The next prime is 87989099089. The reversal of 87989099071 is 17099098978.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 87989099071 - 2⁷ = 87989098943 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 87989098988 and 87989099006.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87989099371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43994549535 + 43994549536.

It is an arithmetic number, because the mean of its divisors is an integer number (43994549536).

Almost surely, 2^87989099071 is an apocalyptic number.

87989099071 is a deficient number, since it is larger than the sum of its proper divisors (1).

87989099071 is an equidigital number, since it uses as much as digits as its factorization.

87989099071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20575296, while the sum is 67.

The spelling of 87989099071 in words is "eighty-seven billion, nine hundred eighty-nine million, ninety-nine thousand, seventy-one".