67654321011 has 40 divisors (see below), whose sum is σ = 102113561088. Its totient is φ = 44636670000.

The previous prime is 67654321001. The next prime is 67654321027. The reversal of 67654321011 is 11012345676.

67654321011 is a `hidden beast` number, since 6 + 7 + 6 + 543 + 2 + 101 + 1 = 666.

It is not a de Polignac number, because 67654321011 - 2⁹ = 67654320499 is a prime.

It is not an unprimeable number, because it can be changed into a prime (67654321001) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 3304396 + ... + 3324806.

Almost surely, 2^67654321011 is an apocalyptic number.

67654321011 is a deficient number, since it is larger than the sum of its proper divisors (34459240077).

67654321011 is a wasteful number, since it uses less digits than its factorization.

67654321011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20845 (or 20836 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

Adding to 67654321011 its reverse (11012345676), we get a palindrome (78666666687).

The spelling of 67654321011 in words is "sixty-seven billion, six hundred fifty-four million, three hundred twenty-one thousand, eleven".