68120751 has 16 divisors (see below), whose sum is σ = 97804800. Its totient is φ = 42016128.

The previous prime is 68120711. The next prime is 68120761. The reversal of 68120751 is 15702186.

It is not a de Polignac number, because 68120751 - 2¹¹ = 68118703 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68120711) 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, 8311 + ... + 14328.

It is an arithmetic number, because the mean of its divisors is an integer number (6112800).

Almost surely, 2^68120751 is an apocalyptic number.

68120751 is a deficient number, since it is larger than the sum of its proper divisors (29684049).

68120751 is a wasteful number, since it uses less digits than its factorization.

68120751 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22718.

The product of its (nonzero) digits is 3360, while the sum is 30.

The square root of 68120751 is about 8253.5296085978. The cubic root of 68120751 is about 408.4069672938.

The spelling of 68120751 in words is "sixty-eight million, one hundred twenty thousand, seven hundred fifty-one".