68919456 has 48 divisors (see below), whose sum is σ = 185812704. Its totient is φ = 22351104.

The previous prime is 68919427. The next prime is 68919467. The reversal of 68919456 is 65491986.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6150 + ... + 13253.

It is an arithmetic number, because the mean of its divisors is an integer number (3871098).

Almost surely, 2^68919456 is an apocalyptic number.

It is an amenable number.

68919456 is an abundant number, since it is smaller than the sum of its proper divisors (116893248).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68919456 is a wasteful number, since it uses less digits than its factorization.

68919456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19453 (or 19445 counting only the distinct ones).

The product of its digits is 466560, while the sum is 48.

The square root of 68919456 is about 8301.7742681911. The cubic root of 68919456 is about 409.9969383075.

The spelling of 68919456 in words is "sixty-eight million, nine hundred nineteen thousand, four hundred fifty-six".