Search a number
-
+
68065647274797 = 3178987126760877
BaseRepresentation
bin11110111100111110001001…
…01110100010101100101101
322221000000022222201000020120
433132133010232202230231
532410141421200243142
6400432532055235153
720223403122533454
oct1736370456425455
9287000288630216
1068065647274797
111a76252a467557
1277736b3678ab9
132bc9741b99b43
1412b457589bb9b
157d0824e2c7ec
hex3de7c4ba2b2d

68065647274797 has 8 divisors (see below), whose sum is σ = 90754704125856. Its totient is φ = 45376844303472.

The previous prime is 68065647274777. The next prime is 68065647274799. The reversal of 68065647274797 is 79747274656086.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 68065647274797 - 219 = 68065646750509 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68065647274799) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62843478 + ... + 63917399.

It is an arithmetic number, because the mean of its divisors is an integer number (11344338015732).

Almost surely, 268065647274797 is an apocalyptic number.

It is an amenable number.

68065647274797 is a deficient number, since it is larger than the sum of its proper divisors (22689056851059).

68065647274797 is a wasteful number, since it uses less digits than its factorization.

68065647274797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126939867.

The product of its (nonzero) digits is 5974456320, while the sum is 78.

The spelling of 68065647274797 in words is "sixty-eight trillion, sixty-five billion, six hundred forty-seven million, two hundred seventy-four thousand, seven hundred ninety-seven".

Divisors: 1 3 178987 536961 126760877 380282631 22688549091599 68065647274797