68583625064 has 16 divisors (see below), whose sum is σ = 128846945700. Its totient is φ = 34224439552.

The previous prime is 68583625027. The next prime is 68583625067. The reversal of 68583625064 is 46052638586.

It can be written as a sum of positive squares in 2 ways, for example, as 66947422564 + 1636202500 = 258742^2 + 40450^2 .

It is a junction number, because it is equal to n+sod(n) for n = 68583624997 and 68583625015.

It is not an unprimeable number, because it can be changed into a prime (68583625067) 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, 8417297 + ... + 8425440.

Almost surely, 2^68583625064 is an apocalyptic number.

It is an amenable number.

68583625064 is a deficient number, since it is larger than the sum of its proper divisors (60263320636).

68583625064 is a wasteful number, since it uses less digits than its factorization.

68583625064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16843252 (or 16843248 counting only the distinct ones).

The product of its (nonzero) digits is 8294400, while the sum is 53.

The spelling of 68583625064 in words is "sixty-eight billion, five hundred eighty-three million, six hundred twenty-five thousand, sixty-four".