87697868109 has 8 divisors (see below), whose sum is σ = 118847384352. Its totient is φ = 57506798640.

The previous prime is 87697868077. The next prime is 87697868119. The reversal of 87697868109 is 90186879678.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 87697868109 - 2⁵ = 87697868077 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87697868119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 239611479 + ... + 239611844.

It is an arithmetic number, because the mean of its divisors is an integer number (14855923044).

Almost surely, 2^87697868109 is an apocalyptic number.

It is an amenable number.

87697868109 is a deficient number, since it is larger than the sum of its proper divisors (31149516243).

87697868109 is a wasteful number, since it uses less digits than its factorization.

87697868109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 479223387.

The product of its (nonzero) digits is 73156608, while the sum is 69.

The spelling of 87697868109 in words is "eighty-seven billion, six hundred ninety-seven million, eight hundred sixty-eight thousand, one hundred nine".