68656052529 has 27 divisors (see below), whose sum is σ = 99958365273. Its totient is φ = 45409633992.

The previous prime is 68656052527. The next prime is 68656052533. The reversal of 68656052529 is 92525065686.

The square root of 68656052529 is 262023.

It is a perfect power (a square), and thus also a powerful number.

68656052529 is a `hidden beast` number, since 6 + 8 + 6 + 5 + 60 + 52 + 529 = 666.

It is not a de Polignac number, because 68656052529 - 2¹ = 68656052527 is a prime.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (68656052527) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 131273262 + ... + 131273784.

Almost surely, 2^68656052529 is an apocalyptic number.

68656052529 is the 262023-rd square number.

68656052529 is the 131012-nd centered octagonal number.

It is an amenable number.

68656052529 is a deficient number, since it is larger than the sum of its proper divisors (31302312744).

68656052529 is an frugal number, since it uses more digits than its factorization.

68656052529 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1386 (or 693 counting only the distinct ones).

The product of its (nonzero) digits is 7776000, while the sum is 54.

The spelling of 68656052529 in words is "sixty-eight billion, six hundred fifty-six million, fifty-two thousand, five hundred twenty-nine".