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68244418479 = 349146330223
BaseRepresentation
bin111111100011101011…
…110010111110101111
320112011001220122202210
4333203223302332233
52104231032342404
651203454421503
74634105662116
oct774353627657
9215131818683
1068244418479
1126a40216756
1211286b01893
13658780a313
1434357c2c7d
151b9642d689
hexfe3af2faf

68244418479 has 8 divisors (see below), whose sum is σ = 91177880832. Its totient is φ = 45403617560.

The previous prime is 68244418471. The next prime is 68244418483. The reversal of 68244418479 is 97481444286.

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 68244418479 - 23 = 68244418471 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68244418471) 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, 23163639 + ... + 23166584.

It is an arithmetic number, because the mean of its divisors is an integer number (11397235104).

Almost surely, 268244418479 is an apocalyptic number.

68244418479 is a deficient number, since it is larger than the sum of its proper divisors (22933462353).

68244418479 is a wasteful number, since it uses less digits than its factorization.

68244418479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46330717.

The product of its digits is 12386304, while the sum is 57.

The spelling of 68244418479 in words is "sixty-eight billion, two hundred forty-four million, four hundred eighteen thousand, four hundred seventy-nine".

Divisors: 1 3 491 1473 46330223 138990669 22748139493 68244418479