87659269897 has 6 divisors (see below), whose sum is σ = 93119017118. Its totient is φ = 82502841984.

The previous prime is 87659269799. The next prime is 87659269927. The reversal of 87659269897 is 79896295678.

It can be written as a sum of positive squares in 3 ways, for example, as 62588030976 + 25071238921 = 250176^2 + 158339^2 .

It is not a de Polignac number, because 87659269897 - 2¹¹ = 87659267849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87659269097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 151659348 + ... + 151659925.

Almost surely, 2^87659269897 is an apocalyptic number.

It is an amenable number.

87659269897 is a deficient number, since it is larger than the sum of its proper divisors (5459747221).

87659269897 is a wasteful number, since it uses less digits than its factorization.

87659269897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303319307 (or 303319290 counting only the distinct ones).

The product of its digits is 823011840, while the sum is 76.

The spelling of 87659269897 in words is "eighty-seven billion, six hundred fifty-nine million, two hundred sixty-nine thousand, eight hundred ninety-seven".