68648319 has 6 divisors (see below), whose sum is σ = 99158696. Its totient is φ = 45765540.

The previous prime is 68648317. The next prime is 68648351. The reversal of 68648319 is 91384686.

It is not a de Polignac number, because 68648319 - 2¹ = 68648317 is a prime.

It is a super-2 number, since 2×68648319² = 9425183403051522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68648317) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3813787 + ... + 3813804.

Almost surely, 2^68648319 is an apocalyptic number.

68648319 is a deficient number, since it is larger than the sum of its proper divisors (30510377).

68648319 is a wasteful number, since it uses less digits than its factorization.

68648319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7627597 (or 7627594 counting only the distinct ones).

The product of its digits is 248832, while the sum is 45.

The square root of 68648319 is about 8285.4281120531. The cubic root of 68648319 is about 409.4585734547.

The spelling of 68648319 in words is "sixty-eight million, six hundred forty-eight thousand, three hundred nineteen".