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67404413768 = 2331271791991
BaseRepresentation
bin111110110001100111…
…011011101101001000
320102222112021222221012
4332301213123231020
52101021012220033
650544250303052
74604226030566
oct766147335510
9212875258835
1067404413768
112664a04178a
1211091727a88
13648278b703
143396002a36
151b47803248
hexfb19dbb48

67404413768 has 16 divisors (see below), whose sum is σ = 130460156160. Its totient is φ = 32615038800.

The previous prime is 67404413767. The next prime is 67404413803. The reversal of 67404413768 is 86731440476.

It is not an unprimeable number, because it can be changed into a prime (67404413767) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 135895748 + ... + 135896243.

It is an arithmetic number, because the mean of its divisors is an integer number (8153759760).

Almost surely, 267404413768 is an apocalyptic number.

It is an amenable number.

67404413768 is a deficient number, since it is larger than the sum of its proper divisors (63055742392).

67404413768 is a wasteful number, since it uses less digits than its factorization.

67404413768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271792028 (or 271792024 counting only the distinct ones).

The product of its (nonzero) digits is 2709504, while the sum is 50.

The spelling of 67404413768 in words is "sixty-seven billion, four hundred four million, four hundred thirteen thousand, seven hundred sixty-eight".

Divisors: 1 2 4 8 31 62 124 248 271791991 543583982 1087167964 2174335928 8425551721 16851103442 33702206884 67404413768