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12977579011507 = 116431834805459
BaseRepresentation
bin1011110011011001001111…
…1111001010110110110011
31200221122101210110022011021
42330312103333022312303
53200111040211332012
643333452325000311
72506412335344115
oct274662377126663
950848353408137
1012977579011507
114153840033240
121557184b53097
13731a1b856816
1432c1923b93b5
1517789b0eb007
hexbcd93fcadb3

12977579011507 has 8 divisors (see below), whose sum is σ = 14179376594880. Its totient is φ = 11779451040360.

The previous prime is 12977579011483. The next prime is 12977579011511. The reversal of 12977579011507 is 70511097577921.

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 12977579011507 - 211 = 12977579009459 is a prime.

It is a super-2 number, since 2×129775790115072 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12977579011547) 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, 917395657 + ... + 917409802.

It is an arithmetic number, because the mean of its divisors is an integer number (1772422074360).

Almost surely, 212977579011507 is an apocalyptic number.

12977579011507 is a deficient number, since it is larger than the sum of its proper divisors (1201797583373).

12977579011507 is a wasteful number, since it uses less digits than its factorization.

12977579011507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1834806113.

The product of its (nonzero) digits is 9724050, while the sum is 61.

The spelling of 12977579011507 in words is "twelve trillion, nine hundred seventy-seven billion, five hundred seventy-nine million, eleven thousand, five hundred seven".

Divisors: 1 11 643 7073 1834805459 20182860049 1179779910137 12977579011507