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9791797080989 = 711127166195857
BaseRepresentation
bin1000111001111101010010…
…0101100011001110011101
31021200002100011201002212202
42032133110211203032131
52240412100023042424
632454142305541245
72030301600624440
oct216372445431635
937602304632782
109791797080989
1131357501a9410
121121871044825
13560493559421
1425bcd5841657
1511ea9178e2ae
hex8e7d496339d

9791797080989 has 8 divisors (see below), whose sum is σ = 12207954802368. Its totient is φ = 7629971751360.

The previous prime is 9791797080983. The next prime is 9791797080991. The reversal of 9791797080989 is 9890807971979.

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

It is not a de Polignac number, because 9791797080989 - 24 = 9791797080973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9791797080983) 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, 63583097852 + ... + 63583098005.

It is an arithmetic number, because the mean of its divisors is an integer number (1525994350296).

Almost surely, 29791797080989 is an apocalyptic number.

It is an amenable number.

9791797080989 is a deficient number, since it is larger than the sum of its proper divisors (2416157721379).

9791797080989 is a wasteful number, since it uses less digits than its factorization.

9791797080989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127166195875.

The product of its (nonzero) digits is 1296243648, while the sum is 83.

The spelling of 9791797080989 in words is "nine trillion, seven hundred ninety-one billion, seven hundred ninety-seven million, eighty thousand, nine hundred eighty-nine".

Divisors: 1 7 11 77 127166195857 890163370999 1398828154427 9791797080989