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49505779967 = 77857190011
BaseRepresentation
bin101110000110110001…
…100100000011111111
311201210010212012012012
4232012301210003333
51302341434424332
634424224401435
73401541121010
oct560661440377
9151703765165
1049505779967
1119aa47a4246
12971747627b
13488c55c737
142578c41007
15144b2be3b2
hexb86c640ff

49505779967 has 8 divisors (see below), whose sum is σ = 56579382912. Its totient is φ = 42432514200.

The previous prime is 49505779877. The next prime is 49505779979. The reversal of 49505779967 is 76997750594.

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 49505779967 - 224 = 49489002751 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 49505779897 and 49505779906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49505776967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 504992 + ... + 595002.

It is an arithmetic number, because the mean of its divisors is an integer number (7072422864).

Almost surely, 249505779967 is an apocalyptic number.

49505779967 is a deficient number, since it is larger than the sum of its proper divisors (7073602945).

49505779967 is an equidigital number, since it uses as much as digits as its factorization.

49505779967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168589.

The product of its (nonzero) digits is 150028200, while the sum is 68.

The spelling of 49505779967 in words is "forty-nine billion, five hundred five million, seven hundred seventy-nine thousand, nine hundred sixty-seven".

Divisors: 1 7 78571 90011 549997 630077 7072254281 49505779967