68853511 has 24 divisors (see below), whose sum is σ = 78041600. Its totient is φ = 60510240.

The previous prime is 68853503. The next prime is 68853541. The reversal of 68853511 is 11535886.

It is not a de Polignac number, because 68853511 - 2³ = 68853503 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68853541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 495280 + ... + 495418.

Almost surely, 2^68853511 is an apocalyptic number.

68853511 is a deficient number, since it is larger than the sum of its proper divisors (9188089).

68853511 is a wasteful number, since it uses less digits than its factorization.

68853511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247 (or 218 counting only the distinct ones).

The product of its digits is 28800, while the sum is 37.

The square root of 68853511 is about 8297.8015763213. The cubic root of 68853511 is about 409.8661292070.

The spelling of 68853511 in words is "sixty-eight million, eight hundred fifty-three thousand, five hundred eleven".