68610451 has 24 divisors (see below), whose sum is σ = 86434560. Its totient is φ = 53310816.

The previous prime is 68610431. The next prime is 68610457. The reversal of 68610451 is 15401686.

It is not a de Polignac number, because 68610451 - 2¹⁵ = 68577683 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 (68610457) 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 23 ways as a sum of consecutive naturals, for example, 69306 + ... + 70288.

It is an arithmetic number, because the mean of its divisors is an integer number (3601440).

Almost surely, 2^68610451 is an apocalyptic number.

68610451 is a deficient number, since it is larger than the sum of its proper divisors (17824109).

68610451 is a wasteful number, since it uses less digits than its factorization.

68610451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1075 (or 1062 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 68610451 is about 8283.1425799632. The cubic root of 68610451 is about 409.3832706679.

The spelling of 68610451 in words is "sixty-eight million, six hundred ten thousand, four hundred fifty-one".