68887570135 has 16 divisors (see below), whose sum is σ = 86267643840. Its totient is φ = 52708817920.

The previous prime is 68887570133. The next prime is 68887570139. The reversal of 68887570135 is 53107578886.

It is a happy number.

It is not a de Polignac number, because 68887570135 - 2¹ = 68887570133 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 68887570135.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68887570133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1498695 + ... + 1543975.

It is an arithmetic number, because the mean of its divisors is an integer number (5391727740).

Almost surely, 2^68887570135 is an apocalyptic number.

68887570135 is a deficient number, since it is larger than the sum of its proper divisors (17380073705).

68887570135 is a wasteful number, since it uses less digits than its factorization.

68887570135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58538.

The product of its (nonzero) digits is 11289600, while the sum is 58.

The spelling of 68887570135 in words is "sixty-eight billion, eight hundred eighty-seven million, five hundred seventy thousand, one hundred thirty-five".