68432511 has 8 divisors (see below), whose sum is σ = 104278144. Its totient is φ = 39104280.

The previous prime is 68432503. The next prime is 68432549. The reversal of 68432511 is 11523486.

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

It is not a de Polignac number, because 68432511 - 2³ = 68432503 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 (68432311) 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 7 ways as a sum of consecutive naturals, for example, 1629325 + ... + 1629366.

It is an arithmetic number, because the mean of its divisors is an integer number (13034768).

Almost surely, 2^68432511 is an apocalyptic number.

68432511 is a deficient number, since it is larger than the sum of its proper divisors (35845633).

68432511 is a wasteful number, since it uses less digits than its factorization.

68432511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3258701.

The product of its digits is 5760, while the sum is 30.

The square root of 68432511 is about 8272.3945142867. The cubic root of 68432511 is about 409.0290548322.

Adding to 68432511 its reverse (11523486), we get a palindrome (79955997).

The spelling of 68432511 in words is "sixty-eight million, four hundred thirty-two thousand, five hundred eleven".