68891463 has 24 divisors (see below), whose sum is σ = 109950048. Its totient is φ = 41344512.

The previous prime is 68891453. The next prime is 68891489. The reversal of 68891463 is 36419886.

It is not a de Polignac number, because 68891463 - 2¹² = 68887367 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68891413) 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, 6270 + ... + 13307.

It is an arithmetic number, because the mean of its divisors is an integer number (4581252).

Almost surely, 2^68891463 is an apocalyptic number.

68891463 is a deficient number, since it is larger than the sum of its proper divisors (41058585).

68891463 is a wasteful number, since it uses less digits than its factorization.

68891463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19623 (or 19620 counting only the distinct ones).

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

The square root of 68891463 is about 8300.0881320622. The cubic root of 68891463 is about 409.9414213355.

The spelling of 68891463 in words is "sixty-eight million, eight hundred ninety-one thousand, four hundred sixty-three".