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74966201855 = 5121577123323
BaseRepresentation
bin100010111010001010…
…1010111010111111111
321011111112010122002122
41011310111113113333
52212012321424410
654234453513155
75262506126156
oct1056425272777
9234445118078
1074966201855
112987a515026
12126420427bb
1370b92a152c
1438b23da59d
151e3b5dce55
hex11745575ff

74966201855 has 8 divisors (see below), whose sum is σ = 89960911632. Its totient is φ = 59971981888.

The previous prime is 74966201813. The next prime is 74966201879. The reversal of 74966201855 is 55810266947.

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

It is a cyclic number.

It is not a de Polignac number, because 74966201855 - 210 = 74966200831 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 74966201797 and 74966201806.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 546224 + ... + 669546.

It is an arithmetic number, because the mean of its divisors is an integer number (11245113954).

Almost surely, 274966201855 is an apocalyptic number.

74966201855 is a deficient number, since it is larger than the sum of its proper divisors (14994709777).

74966201855 is a wasteful number, since it uses less digits than its factorization.

74966201855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244905.

The product of its (nonzero) digits is 3628800, while the sum is 53.

The spelling of 74966201855 in words is "seventy-four billion, nine hundred sixty-six million, two hundred one thousand, eight hundred fifty-five".

Divisors: 1 5 121577 123323 607885 616615 14993240371 74966201855