68740776 has 72 divisors (see below), whose sum is σ = 201236490. Its totient is φ = 21072960.

The previous prime is 68740757. The next prime is 68740799. The reversal of 68740776 is 67704786.

It can be written as a sum of positive squares in only one way, i.e., 66096900 + 2643876 = 8130^2 + 1626^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 253521 + ... + 253791.

Almost surely, 2^68740776 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68740776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100618245).

68740776 is an abundant number, since it is smaller than the sum of its proper divisors (132495714).

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

68740776 is a wasteful number, since it uses less digits than its factorization.

68740776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 567 (or 289 counting only the distinct ones).

The product of its (nonzero) digits is 395136, while the sum is 45.

The square root of 68740776 is about 8291.0057291019. The cubic root of 68740776 is about 409.6423134642.

The spelling of 68740776 in words is "sixty-eight million, seven hundred forty thousand, seven hundred seventy-six".