68251911 has 16 divisors (see below), whose sum is σ = 112003584. Its totient is φ = 36000864.

The previous prime is 68251891. The next prime is 68251949. The reversal of 68251911 is 11915286.

It is not a de Polignac number, because 68251911 - 2⁷ = 68251783 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68251111) 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, 124731 + ... + 125276.

It is an arithmetic number, because the mean of its divisors is an integer number (7000224).

Almost surely, 2^68251911 is an apocalyptic number.

68251911 is a deficient number, since it is larger than the sum of its proper divisors (43751673).

68251911 is a wasteful number, since it uses less digits than its factorization.

68251911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250030.

The product of its digits is 4320, while the sum is 33.

The square root of 68251911 is about 8261.4714791010. The cubic root of 68251911 is about 408.6689154502.

The spelling of 68251911 in words is "sixty-eight million, two hundred fifty-one thousand, nine hundred eleven".