68356651 has 12 divisors (see below), whose sum is σ = 75378016. Its totient is φ = 61942320.

The previous prime is 68356637. The next prime is 68356663. The reversal of 68356651 is 15665386.

It is not a de Polignac number, because 68356651 - 2⁷ = 68356523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68356601) 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, 47326 + ... + 48748.

Almost surely, 2^68356651 is an apocalyptic number.

68356651 is a deficient number, since it is larger than the sum of its proper divisors (7021365).

68356651 is a wasteful number, since it uses less digits than its factorization.

68356651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1842 (or 1831 counting only the distinct ones).

The product of its digits is 129600, while the sum is 40.

The square root of 68356651 is about 8267.8081133998. The cubic root of 68356651 is about 408.8778576098.

The spelling of 68356651 in words is "sixty-eight million, three hundred fifty-six thousand, six hundred fifty-one".