68738564 has 12 divisors (see below), whose sum is σ = 120651804. Its totient is φ = 34266624.

The previous prime is 68738543. The next prime is 68738569. The reversal of 68738564 is 46583786.

It can be written as a sum of positive squares in 2 ways, for example, as 6801664 + 61936900 = 2608^2 + 7870^2 .

It is not an unprimeable number, because it can be changed into a prime (68738569) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24149 + ... + 26844.

It is an arithmetic number, because the mean of its divisors is an integer number (10054317).

Almost surely, 2^68738564 is an apocalyptic number.

It is an amenable number.

68738564 is a deficient number, since it is larger than the sum of its proper divisors (51913240).

68738564 is a wasteful number, since it uses less digits than its factorization.

68738564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51334 (or 51332 counting only the distinct ones).

The product of its digits is 967680, while the sum is 47.

The square root of 68738564 is about 8290.8723304608. The cubic root of 68738564 is about 409.6379194758.

The spelling of 68738564 in words is "sixty-eight million, seven hundred thirty-eight thousand, five hundred sixty-four".