68151951 has 12 divisors (see below), whose sum is σ = 112504912. Its totient is φ = 38943936.

The previous prime is 68151913. The next prime is 68151959. The reversal of 68151951 is 15915186.

It is not a de Polignac number, because 68151951 - 2⁹ = 68151439 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 (68151959) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 540826 + ... + 540951.

Almost surely, 2^68151951 is an apocalyptic number.

68151951 is a deficient number, since it is larger than the sum of its proper divisors (44352961).

68151951 is a wasteful number, since it uses less digits than its factorization.

68151951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1081790 (or 1081787 counting only the distinct ones).

The product of its digits is 10800, while the sum is 36.

The square root of 68151951 is about 8255.4194926727. The cubic root of 68151951 is about 408.4693092984.

The spelling of 68151951 in words is "sixty-eight million, one hundred fifty-one thousand, nine hundred fifty-one".