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42761378067985 = 571547220209481
BaseRepresentation
bin10011011100100001010001…
…01111111111011000010001
312121101221120221221011122201
421232100220233333120101
521101100300241133420
6230540150023403201
712002256545251663
oct1156205057773021
9177357527834581
1042761378067985
1112696aa9150475
124967536bb3501
131ab24c4395a95
14a7b939b66533
154e24c54b610a
hex26e428bff611

42761378067985 has 16 divisors (see below), whose sum is σ = 52131511930752. Its totient is φ = 33665625302400.

The previous prime is 42761378067983. The next prime is 42761378068039. The reversal of 42761378067985 is 58976087316724.

It is not a de Polignac number, because 42761378067985 - 21 = 42761378067983 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42761378067983) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 109910556 + ... + 110298925.

It is an arithmetic number, because the mean of its divisors is an integer number (3258219495672).

It is a 1-persistent number, because it is pandigital, but 2⋅42761378067985 = 85522756135970 is not.

Almost surely, 242761378067985 is an apocalyptic number.

It is an amenable number.

42761378067985 is a deficient number, since it is larger than the sum of its proper divisors (9370133862767).

42761378067985 is a wasteful number, since it uses less digits than its factorization.

42761378067985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220210104.

The product of its (nonzero) digits is 853493760, while the sum is 73.

The spelling of 42761378067985 in words is "forty-two trillion, seven hundred sixty-one billion, three hundred seventy-eight million, sixty-seven thousand, nine hundred eighty-five".

Divisors: 1 5 71 355 547 2735 38837 194185 220209481 1101047405 15634873151 78174365755 120454586107 602272930535 8552275613597 42761378067985