68754568545 has 192 divisors, whose sum is σ = 138322888704. Its totient is φ = 31293112320.

The previous prime is 68754568529. The next prime is 68754568609. The reversal of 68754568545 is 54586545786.

68754568545 is a `hidden beast` number, since 6 + 8 + 7 + 545 + 6 + 85 + 4 + 5 = 666.

It is not a de Polignac number, because 68754568545 - 2⁴ = 68754568529 is a prime.

Its product of digits (161280000) is a multiple of the sum of its prime factors (672).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 253706760 + ... + 253707030.

It is an arithmetic number, because the mean of its divisors is an integer number (720431712).

Almost surely, 2^68754568545 is an apocalyptic number.

68754568545 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

68754568545 is an abundant number, since it is smaller than the sum of its proper divisors (69568320159).

68754568545 is a wasteful number, since it uses less digits than its factorization.

68754568545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 672 (or 669 counting only the distinct ones).

The product of its digits is 161280000, while the sum is 63.

The spelling of 68754568545 in words is "sixty-eight billion, seven hundred fifty-four million, five hundred sixty-eight thousand, five hundred forty-five".